diff --git a/dm/_utils/terror_gen/errors_release.txt b/dm/_utils/terror_gen/errors_release.txt
index fd6800be43f..177feaf5559 100644
--- a/dm/_utils/terror_gen/errors_release.txt
+++ b/dm/_utils/terror_gen/errors_release.txt
@@ -536,6 +536,7 @@ ErrSchedulerStopRelayOnSpecified,[code=46029:class=scheduler:scope=internal:leve
 ErrSchedulerStartRelayOnBound,[code=46030:class=scheduler:scope=internal:level=low], "Message: the source has `start-relay` automatically for bound worker, so it can't `start-relay` with worker name now, Workaround: Please stop relay by `stop-relay` without worker name first."
 ErrSchedulerStopRelayOnBound,[code=46031:class=scheduler:scope=internal:level=low], "Message: the source has `start-relay` automatically for bound worker, so it can't `stop-relay` with worker name now, Workaround: Please use `stop-relay` without worker name."
 ErrSchedulerPauseTaskForTransferSource,[code=46032:class=scheduler:scope=internal:level=low], "Message: failed to auto pause tasks %s when transfer-source, Workaround: Please pause task by `dmctl pause-task`."
+ErrSchedulerWorkerNotFree,[code=46033:class=scheduler:scope=internal:level=low], "Message: dm-worker with name %s not free"
 ErrCtlGRPCCreateConn,[code=48001:class=dmctl:scope=internal:level=high], "Message: can not create grpc connection, Workaround: Please check your network connection."
 ErrCtlInvalidTLSCfg,[code=48002:class=dmctl:scope=internal:level=medium], "Message: invalid TLS config, Workaround: Please check the `ssl-ca`, `ssl-cert` and `ssl-key` config in command line."
 ErrCtlLoadTLSCfg,[code=48003:class=dmctl:scope=internal:level=high], "Message: can not load tls config, Workaround: Please ensure that the tls certificate is accessible on the node currently running dmctl."
diff --git a/dm/dm/ctl/master/operate_source.go b/dm/dm/ctl/master/operate_source.go
index c50e405217d..bba20d1c7b8 100644
--- a/dm/dm/ctl/master/operate_source.go
+++ b/dm/dm/ctl/master/operate_source.go
@@ -32,11 +32,12 @@ import (
 // NewOperateSourceCmd creates a OperateSource command.
 func NewOperateSourceCmd() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:   "operate-source <operate-type> [config-file ...] [--print-sample-config]",
+		Use:   "operate-source <operate-type> [config-file ...] [-w worker] [--print-sample-config]",
 		Short: "`create`/`update`/`stop`/`show` upstream MySQL/MariaDB source",
 		RunE:  operateSourceFunc,
 	}
 	cmd.Flags().BoolP("print-sample-config", "p", false, "print sample config file of source")
+	cmd.Flags().StringP("worker", "w", "", "specify bound worker for created source")
 	return cmd
 }
 
@@ -85,6 +86,20 @@ func operateSourceFunc(cmd *cobra.Command, _ []string) error {
 		return errors.New("please check output to see error")
 	}
 
+	var specifyWorker string
+	if op == pb.SourceOp_StartSource {
+		specifyWorker, err = cmd.Flags().GetString("worker")
+		if err != nil {
+			common.PrintLinesf("error in parse `--worker`")
+			return err
+		}
+		if specifyWorker != "" {
+			if len(cmd.Flags().Args()) > 2 {
+				common.PrintLinesf("operate-source create can't create multiple sources when specify worker")
+			}
+		}
+	}
+
 	contents := make([]string, 0, len(cmd.Flags().Args())-1)
 	sourceID := make([]string, 0, len(cmd.Flags().Args())-1)
 	sources, err := common.GetSourceArgs(cmd)
@@ -132,9 +147,10 @@ func operateSourceFunc(cmd *cobra.Command, _ []string) error {
 		ctx,
 		"OperateSource",
 		&pb.OperateSourceRequest{
-			Config:   contents,
-			Op:       op,
-			SourceID: sourceID,
+			Config:     contents,
+			Op:         op,
+			SourceID:   sourceID,
+			WorkerName: specifyWorker,
 		},
 		&resp,
 	)
diff --git a/dm/dm/master/scheduler/scheduler.go b/dm/dm/master/scheduler/scheduler.go
index fd7ed6555d0..e5b899a4837 100644
--- a/dm/dm/master/scheduler/scheduler.go
+++ b/dm/dm/master/scheduler/scheduler.go
@@ -317,7 +317,7 @@ func (s *Scheduler) CloseAllWorkers() {
 	}
 }
 
-// AddSourceCfg adds the upstream source config to the cluster.
+// AddSourceCfg adds the upstream source config to the cluster, and try to bound source to worker
 // NOTE: please verify the config before call this.
 func (s *Scheduler) AddSourceCfg(cfg *config.SourceConfig) error {
 	s.mu.Lock()
@@ -327,11 +327,49 @@ func (s *Scheduler) AddSourceCfg(cfg *config.SourceConfig) error {
 		return terror.ErrSchedulerNotStarted.Generate()
 	}
 
+	err := s.addSource(cfg)
+	if err != nil {
+		return err
+	}
+
+	// try to bound it to a Free worker.
+	_, err = s.tryBoundForSource(cfg.SourceID)
+	return err
+}
+
+// AddSourceCfgWithWorker adds the upstream source config to the cluster, and try to bound source to specify worker
+// NOTE: please verify the config before call this.
+func (s *Scheduler) AddSourceCfgWithWorker(cfg *config.SourceConfig, workerName string) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if !s.started.Load() {
+		return terror.ErrSchedulerNotStarted.Generate()
+	}
+
+	// check whether worker exists.
+	w, ok := s.workers[workerName]
+	if !ok {
+		return terror.ErrSchedulerWorkerNotExist.Generate(workerName)
+	}
+
+	if w.stage != WorkerFree {
+		return terror.ErrSchedulerWorkerNotFree.Generate(workerName)
+	}
+
+	if err := s.addSource(cfg); err != nil {
+		return err
+	}
+
+	return s.boundSourceToWorker(cfg.SourceID, w)
+}
+
+// addSource adds the upstream source config to the cluster.
+func (s *Scheduler) addSource(cfg *config.SourceConfig) error {
 	// 1. check whether exists.
 	if _, ok := s.sourceCfgs[cfg.SourceID]; ok {
 		return terror.ErrSchedulerSourceCfgExist.Generate(cfg.SourceID)
 	}
-
 	// 2. put the config into etcd.
 	_, err := ha.PutSourceCfg(s.etcdCli, cfg)
 	if err != nil {
@@ -341,10 +379,7 @@ func (s *Scheduler) AddSourceCfg(cfg *config.SourceConfig) error {
 	// 3. record the config in the scheduler.
 	s.sourceCfgs[cfg.SourceID] = cfg
 	s.unbounds[cfg.SourceID] = struct{}{}
-
-	// 4. try to bound it to a Free worker.
-	_, err = s.tryBoundForSource(cfg.SourceID)
-	return err
+	return nil
 }
 
 // UpdateSourceCfg update the upstream source config to the cluster.
diff --git a/dm/dm/master/scheduler/scheduler_test.go b/dm/dm/master/scheduler/scheduler_test.go
index f2d254bf0f0..f045456407b 100644
--- a/dm/dm/master/scheduler/scheduler_test.go
+++ b/dm/dm/master/scheduler/scheduler_test.go
@@ -135,6 +135,7 @@ func (t *testScheduler) testSchedulerProgress(c *C, restart int) {
 
 	// not started scheduler can't do anything.
 	c.Assert(terror.ErrSchedulerNotStarted.Equal(s.AddSourceCfg(sourceCfg1)), IsTrue)
+	c.Assert(terror.ErrSchedulerNotStarted.Equal(s.AddSourceCfgWithWorker(sourceCfg1, workerName1)), IsTrue)
 	c.Assert(terror.ErrSchedulerNotStarted.Equal(s.UpdateSourceCfg(sourceCfg1)), IsTrue)
 	c.Assert(terror.ErrSchedulerNotStarted.Equal(s.RemoveSourceCfg(sourceID1)), IsTrue)
 	c.Assert(terror.ErrSchedulerNotStarted.Equal(s.AddSubTasks(false, subtaskCfg1)), IsTrue)
@@ -406,7 +407,7 @@ func (t *testScheduler) testSchedulerProgress(c *C, restart int) {
 	t.relayStageMatch(c, s, sourceID2, pb.Stage_Running)
 	rebuildScheduler(ctx)
 
-	// CASE 4.4: start a task with two sources.
+	// CASE 4.4.1: start a task with two sources.
 	// can't add more than one tasks at a time now.
 	c.Assert(terror.ErrSchedulerMultiTask.Equal(s.AddSubTasks(false, subtaskCfg1, subtaskCfg21)), IsTrue)
 	// task2' config and stage not exists before.
@@ -423,7 +424,7 @@ func (t *testScheduler) testSchedulerProgress(c *C, restart int) {
 	t.subTaskStageMatch(c, s, taskName2, sourceID2, pb.Stage_Running)
 	rebuildScheduler(ctx)
 
-	// CASE 4.4.1 fail to stop any task.
+	// CASE 4.4.2 fail to stop any task.
 	// can call without tasks or sources, return without error, but take no effect.
 	c.Assert(s.RemoveSubTasks("", sourceID1), IsNil)
 	c.Assert(s.RemoveSubTasks(taskName1), IsNil)
@@ -481,6 +482,38 @@ func (t *testScheduler) testSchedulerProgress(c *C, restart int) {
 	t.relayStageMatch(c, s, sourceID2, pb.Stage_InvalidStage)
 	rebuildScheduler(ctx)
 
+	// CASE 4.7.1: add source2 with specify worker1
+	// source2 not exist, worker1 is bound
+	t.sourceCfgNotExist(c, s, sourceID2)
+	t.workerBound(c, s, ha.NewSourceBound(sourceID1, workerName1))
+	c.Assert(terror.ErrSchedulerWorkerNotFree.Equal(s.AddSourceCfgWithWorker(&sourceCfg2, workerName1)), IsTrue)
+	// source2 is not created because expected worker1 is already bound
+	t.sourceCfgNotExist(c, s, sourceID2)
+	rebuildScheduler(ctx)
+
+	// CASE 4.7.2: add source2 with specify worker2
+	// source2 not exist, worker2 should be free
+	t.sourceCfgNotExist(c, s, sourceID2)
+	t.workerFree(c, s, workerName2)
+	c.Assert(s.AddSourceCfgWithWorker(&sourceCfg2, workerName2), IsNil)
+	t.workerBound(c, s, ha.NewSourceBound(sourceID2, workerName2))
+	t.sourceBounds(c, s, []string{sourceID1, sourceID2}, []string{})
+	c.Assert(s.StartRelay(sourceID2, []string{workerName2}), IsNil)
+	t.relayStageMatch(c, s, sourceID2, pb.Stage_Running)
+	rebuildScheduler(ctx)
+
+	// CASE 4.7.3: remove source2 again.
+	c.Assert(s.StopRelay(sourceID2, []string{workerName2}), IsNil)
+	c.Assert(s.RemoveSourceCfg(sourceID2), IsNil)
+	c.Assert(terror.ErrSchedulerSourceCfgNotExist.Equal(s.RemoveSourceCfg(sourceID2)), IsTrue) // already removed.
+	// source2 removed.
+	t.sourceCfgNotExist(c, s, sourceID2)
+	// worker2 become Free now.
+	t.workerFree(c, s, workerName2)
+	t.sourceBounds(c, s, []string{sourceID1}, []string{})
+	t.relayStageMatch(c, s, sourceID2, pb.Stage_InvalidStage)
+	rebuildScheduler(ctx)
+
 	// CASE 4.8: worker1 become offline.
 	// before shutdown, worker1 bound source
 	t.workerBound(c, s, ha.NewSourceBound(sourceID1, workerName1))
diff --git a/dm/dm/master/server.go b/dm/dm/master/server.go
index 14fee188065..c67e8fc7802 100644
--- a/dm/dm/master/server.go
+++ b/dm/dm/master/server.go
@@ -1396,7 +1396,12 @@ func (s *Server) OperateSource(ctx context.Context, req *pb.OperateSourceRequest
 			err      error
 		)
 		for _, cfg := range cfgs {
-			err = s.scheduler.AddSourceCfg(cfg)
+			// add source with worker when specify a worker name
+			if req.WorkerName != "" {
+				err = s.scheduler.AddSourceCfgWithWorker(cfg, req.WorkerName)
+			} else {
+				err = s.scheduler.AddSourceCfg(cfg)
+			}
 			// return first error and try to revert, so user could copy-paste same start command after error
 			if err != nil {
 				resp.Msg = err.Error()
diff --git a/dm/dm/pb/dmmaster.pb.go b/dm/dm/pb/dmmaster.pb.go
index 790788ca74c..b70beb74973 100644
--- a/dm/dm/pb/dmmaster.pb.go
+++ b/dm/dm/pb/dmmaster.pb.go
@@ -1357,9 +1357,10 @@ func (m *CheckTaskResponse) GetMsg() string {
 }
 
 type OperateSourceRequest struct {
-	Op       SourceOp `protobuf:"varint,1,opt,name=op,proto3,enum=pb.SourceOp" json:"op,omitempty"`
-	Config   []string `protobuf:"bytes,2,rep,name=config,proto3" json:"config,omitempty"`
-	SourceID []string `protobuf:"bytes,3,rep,name=sourceID,proto3" json:"sourceID,omitempty"`
+	Op         SourceOp `protobuf:"varint,1,opt,name=op,proto3,enum=pb.SourceOp" json:"op,omitempty"`
+	Config     []string `protobuf:"bytes,2,rep,name=config,proto3" json:"config,omitempty"`
+	SourceID   []string `protobuf:"bytes,3,rep,name=sourceID,proto3" json:"sourceID,omitempty"`
+	WorkerName string   `protobuf:"bytes,4,opt,name=workerName,proto3" json:"workerName,omitempty"`
 }
 
 func (m *OperateSourceRequest) Reset()         { *m = OperateSourceRequest{} }
@@ -1416,6 +1417,13 @@ func (m *OperateSourceRequest) GetSourceID() []string {
 	return nil
 }
 
+func (m *OperateSourceRequest) GetWorkerName() string {
+	if m != nil {
+		return m.WorkerName
+	}
+	return ""
+}
+
 type OperateSourceResponse struct {
 	Result  bool                    `protobuf:"varint,1,opt,name=result,proto3" json:"result,omitempty"`
 	Msg     string                  `protobuf:"bytes,2,opt,name=msg,proto3" json:"msg,omitempty"`
@@ -3206,138 +3214,139 @@ func init() {
 func init() { proto.RegisterFile("dmmaster.proto", fileDescriptor_f9bef11f2a341f03) }
 
 var fileDescriptor_f9bef11f2a341f03 = []byte{
-	// 2090 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x59, 0x5f, 0x6f, 0xe3, 0xc6,
-	0x11, 0x17, 0x25, 0x59, 0x96, 0x46, 0xb6, 0x22, 0xaf, 0x65, 0x99, 0xc7, 0xf3, 0xe9, 0x1c, 0x36,
-	0x09, 0x0c, 0xa3, 0x38, 0xe3, 0xdc, 0x3e, 0x05, 0x48, 0x81, 0x9c, 0x74, 0xb9, 0x18, 0xf5, 0xd5,
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+	0x54, 0x53, 0xd2, 0xf3, 0x02, 0xa9, 0xe4, 0xa9, 0xfe, 0x8f, 0x37, 0x3d, 0xed, 0xdb, 0x37, 0x3d,
+	0xed, 0xdf, 0x6f, 0x7a, 0xda, 0x1f, 0xdf, 0xf6, 0x4a, 0xdf, 0xbe, 0xed, 0x95, 0xfe, 0xf5, 0xb6,
+	0x57, 0x1a, 0xd6, 0xf0, 0x4f, 0xc2, 0x1f, 0xfd, 0x37, 0x00, 0x00, 0xff, 0xff, 0xab, 0x51, 0x94,
+	0xcf, 0x68, 0x1c, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -5141,6 +5150,13 @@ func (m *OperateSourceRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if len(m.WorkerName) > 0 {
+		i -= len(m.WorkerName)
+		copy(dAtA[i:], m.WorkerName)
+		i = encodeVarintDmmaster(dAtA, i, uint64(len(m.WorkerName)))
+		i--
+		dAtA[i] = 0x22
+	}
 	if len(m.SourceID) > 0 {
 		for iNdEx := len(m.SourceID) - 1; iNdEx >= 0; iNdEx-- {
 			i -= len(m.SourceID[iNdEx])
@@ -7024,6 +7040,10 @@ func (m *OperateSourceRequest) Size() (n int) {
 			n += 1 + l + sovDmmaster(uint64(l))
 		}
 	}
+	l = len(m.WorkerName)
+	if l > 0 {
+		n += 1 + l + sovDmmaster(uint64(l))
+	}
 	return n
 }
 
@@ -10443,6 +10463,38 @@ func (m *OperateSourceRequest) Unmarshal(dAtA []byte) error {
 			}
 			m.SourceID = append(m.SourceID, string(dAtA[iNdEx:postIndex]))
 			iNdEx = postIndex
+		case 4:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field WorkerName", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowDmmaster
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthDmmaster
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthDmmaster
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.WorkerName = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipDmmaster(dAtA[iNdEx:])
diff --git a/dm/dm/proto/dmmaster.proto b/dm/dm/proto/dmmaster.proto
index f97bc200730..0ba158c8b8f 100644
--- a/dm/dm/proto/dmmaster.proto
+++ b/dm/dm/proto/dmmaster.proto
@@ -6,134 +6,134 @@ import "dmworker.proto"; // refine if needed
 import "google/api/annotations.proto";
 
 service Master {
-    rpc StartTask (StartTaskRequest) returns (StartTaskResponse) {
-        option (google.api.http) = { 
-            post: "/apis/v1alpha1/tasks"
-            body: "*"
-        };
-    }
-
-    rpc OperateTask (OperateTaskRequest) returns (OperateTaskResponse) {
-        option (google.api.http) = { 
-            put: "/apis/v1alpha1/tasks/{name}"
-            body: "*"
-        };
-    }
-    rpc UpdateTask (UpdateTaskRequest) returns (UpdateTaskResponse) {}
-
-    rpc QueryStatus (QueryStatusListRequest) returns (QueryStatusListResponse) {
-        option (google.api.http) = { 
-            get: "/apis/v1alpha1/status/{name}"
-        };
-    }
-
-    // show un-resolved DDL locks
-    rpc ShowDDLLocks (ShowDDLLocksRequest) returns (ShowDDLLocksResponse) {}
-    // used by dmctl to manually unlock DDL lock
-    rpc UnlockDDLLock (UnlockDDLLockRequest) returns (UnlockDDLLockResponse) {}
-
-    // OperateWorkerRelayTask requests some dm-workers to operate relay unit
-    rpc OperateWorkerRelayTask (OperateWorkerRelayRequest) returns (OperateWorkerRelayResponse) {}
-
-    // PurgeWorkerRelay purges relay log files for some dm-workers
-    rpc PurgeWorkerRelay(PurgeWorkerRelayRequest) returns (PurgeWorkerRelayResponse) {}
-
-    // CheckTask checks legality of task configuration
-    rpc CheckTask(CheckTaskRequest) returns (CheckTaskResponse) {}
-
-    // Operate an upstream MySQL source.
-    rpc OperateSource(OperateSourceRequest) returns (OperateSourceResponse) {
-        option (google.api.http) = {
-            put: "/apis/v1alpha1/sources"
-            body: "*"
-        };
-    }
-
-    // RegisterWorker register the dm-workers.
-    rpc RegisterWorker(RegisterWorkerRequest) returns(RegisterWorkerResponse) {}
-
-    // OfflineMember offline the dm cluster's members (master/worker).
-    rpc OfflineMember(OfflineMemberRequest) returns(OfflineMemberResponse) {
-        option (google.api.http) = {
-            delete: "/apis/v1alpha1/members/{type}/{name}"
-        };
-    }
-
-    // OperateLeader do some operate on master:
-    //   - evict leader: make the master resign if it is leader, and will not campaign the leader again
-    //   - cancel evict leader: the master can campaign leader again.
-    rpc OperateLeader(OperateLeaderRequest) returns(OperateLeaderResponse) {
-        option (google.api.http) = { 
-            put: "/apis/v1alpha1/leader/{op}"
-            body: "*"
-        };
-    }
-
-    // ListMember list member information
-    rpc ListMember(ListMemberRequest) returns(ListMemberResponse) {
-        option (google.api.http) = {
-            get: "/apis/v1alpha1/members"
-        };
-    }
-
-    rpc OperateSchema(OperateSchemaRequest) returns(OperateSchemaResponse) {
-        option (google.api.http) = {
-            put: "/apis/v1alpha1/schema"
-            body: "*"
-        };
-    }
-
-    rpc GetSubTaskCfg(GetSubTaskCfgRequest) returns(GetSubTaskCfgResponse) {
-        option (google.api.http) = {
-            get: "/apis/v1alpha1/subtasks/{name}"
-        };
-    }
-
-    // GetCfg get config
-    rpc GetCfg(GetCfgRequest) returns(GetCfgResponse) {
-        option (google.api.http) = {
-            get: "/apis/v1alpha1/tasks/{name}"
-        };
-    }
-
-    rpc HandleError(HandleErrorRequest) returns(HandleErrorResponse) {
-        option (google.api.http) = {
-            put: "/apis/v1alpha1/errors"
-            body: "*"
-        };
-    }
-
-    rpc GetMasterCfg(GetMasterCfgRequest) returns(GetMasterCfgResponse) {}
-
-    rpc TransferSource(TransferSourceRequest) returns(TransferSourceResponse) {}
-
-    rpc OperateRelay(OperateRelayRequest) returns(OperateRelayResponse) {}
+  rpc StartTask (StartTaskRequest) returns (StartTaskResponse) {
+    option (google.api.http) = {
+      post: "/apis/v1alpha1/tasks"
+      body: "*"
+    };
+  }
+
+  rpc OperateTask (OperateTaskRequest) returns (OperateTaskResponse) {
+    option (google.api.http) = {
+      put: "/apis/v1alpha1/tasks/{name}"
+      body: "*"
+    };
+  }
+  rpc UpdateTask (UpdateTaskRequest) returns (UpdateTaskResponse) {}
+
+  rpc QueryStatus (QueryStatusListRequest) returns (QueryStatusListResponse) {
+    option (google.api.http) = {
+      get: "/apis/v1alpha1/status/{name}"
+    };
+  }
+
+  // show un-resolved DDL locks
+  rpc ShowDDLLocks (ShowDDLLocksRequest) returns (ShowDDLLocksResponse) {}
+  // used by dmctl to manually unlock DDL lock
+  rpc UnlockDDLLock (UnlockDDLLockRequest) returns (UnlockDDLLockResponse) {}
+
+  // OperateWorkerRelayTask requests some dm-workers to operate relay unit
+  rpc OperateWorkerRelayTask (OperateWorkerRelayRequest) returns (OperateWorkerRelayResponse) {}
+
+  // PurgeWorkerRelay purges relay log files for some dm-workers
+  rpc PurgeWorkerRelay(PurgeWorkerRelayRequest) returns (PurgeWorkerRelayResponse) {}
+
+  // CheckTask checks legality of task configuration
+  rpc CheckTask(CheckTaskRequest) returns (CheckTaskResponse) {}
+
+  // Operate an upstream MySQL source.
+  rpc OperateSource(OperateSourceRequest) returns (OperateSourceResponse) {
+    option (google.api.http) = {
+      put: "/apis/v1alpha1/sources"
+      body: "*"
+    };
+  }
+
+  // RegisterWorker register the dm-workers.
+  rpc RegisterWorker(RegisterWorkerRequest) returns(RegisterWorkerResponse) {}
+
+  // OfflineMember offline the dm cluster's members (master/worker).
+  rpc OfflineMember(OfflineMemberRequest) returns(OfflineMemberResponse) {
+    option (google.api.http) = {
+      delete: "/apis/v1alpha1/members/{type}/{name}"
+    };
+  }
+
+  // OperateLeader do some operate on master:
+  //   - evict leader: make the master resign if it is leader, and will not campaign the leader again
+  //   - cancel evict leader: the master can campaign leader again.
+  rpc OperateLeader(OperateLeaderRequest) returns(OperateLeaderResponse) {
+    option (google.api.http) = {
+      put: "/apis/v1alpha1/leader/{op}"
+      body: "*"
+    };
+  }
+
+  // ListMember list member information
+  rpc ListMember(ListMemberRequest) returns(ListMemberResponse) {
+    option (google.api.http) = {
+      get: "/apis/v1alpha1/members"
+    };
+  }
+
+  rpc OperateSchema(OperateSchemaRequest) returns(OperateSchemaResponse) {
+    option (google.api.http) = {
+      put: "/apis/v1alpha1/schema"
+      body: "*"
+    };
+  }
+
+  rpc GetSubTaskCfg(GetSubTaskCfgRequest) returns(GetSubTaskCfgResponse) {
+    option (google.api.http) = {
+      get: "/apis/v1alpha1/subtasks/{name}"
+    };
+  }
+
+  // GetCfg get config
+  rpc GetCfg(GetCfgRequest) returns(GetCfgResponse) {
+    option (google.api.http) = {
+      get: "/apis/v1alpha1/tasks/{name}"
+    };
+  }
+
+  rpc HandleError(HandleErrorRequest) returns(HandleErrorResponse) {
+    option (google.api.http) = {
+      put: "/apis/v1alpha1/errors"
+      body: "*"
+    };
+  }
+
+  rpc GetMasterCfg(GetMasterCfgRequest) returns(GetMasterCfgResponse) {}
+
+  rpc TransferSource(TransferSourceRequest) returns(TransferSourceResponse) {}
+
+  rpc OperateRelay(OperateRelayRequest) returns(OperateRelayResponse) {}
 }
 
 message StartTaskRequest {
-    string task = 1; // task's configuration, yaml format
-    repeated string sources = 2; // mysql source need to do start task, empty for all sources defined in the task config
-    bool removeMeta = 3; // whether to remove meta data for this task or not
-    string startTime = 4; // a highest priority field to specify starting of binlog replication
+  string task = 1; // task's configuration, yaml format
+  repeated string sources = 2; // mysql source need to do start task, empty for all sources defined in the task config
+  bool removeMeta = 3; // whether to remove meta data for this task or not
+  string startTime = 4; // a highest priority field to specify starting of binlog replication
 }
 
 message StartTaskResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 message OperateTaskRequest {
-    TaskOp op = 1; // Stop / Pause / Resume
-    string name = 2; // task's name
-    repeated string sources = 3; // sources need to do operation, empty for matched sources in processing the task
+  TaskOp op = 1; // Stop / Pause / Resume
+  string name = 2; // task's name
+  repeated string sources = 3; // sources need to do operation, empty for matched sources in processing the task
 }
 
 message OperateTaskResponse {
-    TaskOp op = 1;
-    bool result = 2;
-    string msg = 3;
-    repeated CommonWorkerResponse sources = 4;
+  TaskOp op = 1;
+  bool result = 2;
+  string msg = 3;
+  repeated CommonWorkerResponse sources = 4;
 }
 
 
@@ -143,26 +143,26 @@ message OperateTaskResponse {
 //       support update partial config for syncer, loader, etc later
 // sources need to do update, empty for all sources in processing the task
 message UpdateTaskRequest {
-    string task = 1;
-    repeated string sources = 2;
+  string task = 1;
+  repeated string sources = 2;
 }
 
 message UpdateTaskResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 
 message QueryStatusListRequest {
-    string name = 1; // task's name, empty for all tasks
-    repeated string sources = 2; // sources need to query, empty for all sources
+  string name = 1; // task's name, empty for all tasks
+  repeated string sources = 2; // sources need to query, empty for all sources
 }
 
 message QueryStatusListResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated QueryStatusResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated QueryStatusResponse sources = 3;
 }
 
 // ShowDDLLocksRequest used to query DDL locks which are un-resolved
@@ -171,8 +171,8 @@ message QueryStatusListResponse {
 //          any DDL lock in which the source is synced or unsynced will return
 // if specify task and sources both, and sources not doing the task , it will return empty DDL locks
 message ShowDDLLocksRequest {
-    string task = 1;
-    repeated string sources = 2; // sources need to query, empty for all sources
+  string task = 1;
+  repeated string sources = 2; // sources need to query, empty for all sources
 }
 
 // DDLLock represents a DDL lock info (I known the name confused with DDLLockInfo, any suggestion?)
@@ -185,19 +185,19 @@ message ShowDDLLocksRequest {
 // synced: already synced dm-workers
 // unsynced: pending to sync dm-workers
 message DDLLock {
-    string ID = 1;
-    string task = 2;
-    string mode = 3;
-    string owner = 4;
-    repeated string DDLs = 5;
-    repeated string synced = 6;
-    repeated string unsynced = 7;
+  string ID = 1;
+  string task = 2;
+  string mode = 3;
+  string owner = 4;
+  repeated string DDLs = 5;
+  repeated string synced = 6;
+  repeated string unsynced = 7;
 }
 
 message ShowDDLLocksResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated DDLLock locks = 3; // all un-resolved DDL locks
+  bool result = 1;
+  string msg = 2;
+  repeated DDLLock locks = 3; // all un-resolved DDL locks
 }
 
 // UnlockDDLLockRequest used to unlock (resolve) DDL lock manually
@@ -205,27 +205,27 @@ message ShowDDLLocksResponse {
 // replaceOwner: dm-worker used to replace the original DDL lock's owner
 // forceRemove: force to remove the DDL lock even fail to execute the DDL for the owner.
 message UnlockDDLLockRequest {
-    string ID = 1;
-    string replaceOwner = 2;
-    bool forceRemove = 3;
+  string ID = 1;
+  string replaceOwner = 2;
+  bool forceRemove = 3;
 }
 
 message UnlockDDLLockResponse {
-    bool result = 1;
-    string msg = 2;
+  bool result = 1;
+  string msg = 2;
 }
 
 // OperateWorkerRelayRequest represents a request for some dm-workers to operate relay unit
 message OperateWorkerRelayRequest {
-    RelayOp op = 1; // Stop / Pause / Resume
-    repeated string sources = 2;
+  RelayOp op = 1; // Stop / Pause / Resume
+  repeated string sources = 2;
 }
 
 message OperateWorkerRelayResponse {
-    RelayOp op = 1;
-    bool result = 2;
-    string msg = 3;
-    repeated CommonWorkerResponse sources = 4;
+  RelayOp op = 1;
+  bool result = 2;
+  string msg = 3;
+  repeated CommonWorkerResponse sources = 4;
 }
 
 // PurgeWorkerRelayRequest represents a request to purge relay log files for some dm-workers
@@ -235,233 +235,234 @@ message OperateWorkerRelayResponse {
 // filename: whether purge relay log files before this filename
 // subDir: specify relay sub directory for @filename
 message PurgeWorkerRelayRequest {
-    repeated string sources = 1;
-    bool inactive = 2;
-    int64 time = 3;
-    string filename = 4;
-    string subDir = 5;
+  repeated string sources = 1;
+  bool inactive = 2;
+  int64 time = 3;
+  string filename = 4;
+  string subDir = 5;
 }
 
 message PurgeWorkerRelayResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 message CheckTaskRequest {
-    string task = 1; // task's configuration, yaml format
-    int64 errCnt = 2; // max error count to display
-    int64 warnCnt = 3; // max warn count to display
-    string startTime = 4; // a highest priority field to specify starting of binlog replication
+  string task = 1; // task's configuration, yaml format
+  int64 errCnt = 2; // max error count to display
+  int64 warnCnt = 3; // max warn count to display
+  string startTime = 4; // a highest priority field to specify starting of binlog replication
 }
 
 message CheckTaskResponse {
-    bool result = 1;
-    string msg = 2;
+  bool result = 1;
+  string msg = 2;
 }
 
 enum SourceOp {
-    InvalidSourceOp = 0;
-    StartSource = 1;
-    UpdateSource = 2;
-    StopSource = 3;
-    ShowSource = 4;
+  InvalidSourceOp = 0;
+  StartSource = 1;
+  UpdateSource = 2;
+  StopSource = 3;
+  ShowSource = 4;
 }
 
 message OperateSourceRequest {
-    SourceOp op = 1;
-    repeated string config = 2;
-    repeated string sourceID = 3;
+  SourceOp op = 1;
+  repeated string config = 2;
+  repeated string sourceID = 3;
+  string workerName = 4;
 }
 
 message OperateSourceResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 message RegisterWorkerRequest {
-    string name = 1;
-    string address = 2;
+  string name = 1;
+  string address = 2;
 }
 
 message RegisterWorkerResponse {
-    bool result = 1;
-    string msg = 2;
+  bool result = 1;
+  string msg = 2;
 }
 
 message OfflineMemberRequest {
-    string type = 1;
-    string name = 2;
+  string type = 1;
+  string name = 2;
 }
 
 message OfflineMemberResponse {
-    bool result = 1;
-    string msg = 2;
+  bool result = 1;
+  string msg = 2;
 }
 
 enum LeaderOp {
-    InvalidLeaderOp = 0;
-    EvictLeaderOp = 1;
-    CancelEvictLeaderOp = 2;
+  InvalidLeaderOp = 0;
+  EvictLeaderOp = 1;
+  CancelEvictLeaderOp = 2;
 }
 
 message OperateLeaderRequest {
-    LeaderOp op = 1;
+  LeaderOp op = 1;
 }
 
 message OperateLeaderResponse {
-    bool result = 1;
-    string msg = 2;
+  bool result = 1;
+  string msg = 2;
 }
 
 message MasterInfo {
-    string name = 1;
-    uint64 memberID = 2;
-    bool alive = 3;
-    repeated string peerURLs = 4;
-    repeated string clientURLs = 5;
+  string name = 1;
+  uint64 memberID = 2;
+  bool alive = 3;
+  repeated string peerURLs = 4;
+  repeated string clientURLs = 5;
 }
 
 message WorkerInfo {
-    string name = 1;
-    string addr = 2;
-    string stage = 3;
-    string source = 4;
+  string name = 1;
+  string addr = 2;
+  string stage = 3;
+  string source = 4;
 }
 
 message ListLeaderMember {
-    string msg = 1;
-    string name = 2;
-    string addr = 3;
+  string msg = 1;
+  string name = 2;
+  string addr = 3;
 }
 
 message ListMasterMember {
-    string msg = 1;
-    repeated MasterInfo masters = 2;
+  string msg = 1;
+  repeated MasterInfo masters = 2;
 }
 
 message ListWorkerMember {
-    string msg = 1;
-    repeated WorkerInfo workers = 2;
+  string msg = 1;
+  repeated WorkerInfo workers = 2;
 }
 
 message Members {
-    oneof member {
-        ListLeaderMember leader = 1;
-        ListMasterMember master = 2;
-        ListWorkerMember worker = 3;
-    }
+  oneof member {
+    ListLeaderMember leader = 1;
+    ListMasterMember master = 2;
+    ListWorkerMember worker = 3;
+  }
 }
 
 message ListMemberRequest {
-    bool leader = 1;
-    bool master = 2;
-    bool worker = 3;
-    repeated string names = 4;
+  bool leader = 1;
+  bool master = 2;
+  bool worker = 3;
+  repeated string names = 4;
 }
 
 message ListMemberResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated Members members = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated Members members = 3;
 }
 
 message OperateSchemaRequest {
-    SchemaOp op = 1; // operation type
-    string task = 2; // task name
-    repeated string sources = 3; // source ID list
-    string database = 4; // database name
-    string table = 5; // table name
-    string schema = 6; // schema content, a `CREATE TABLE` statement
-    bool flush = 7; // flush table info and checkpoint
-    bool sync = 8; // sync the table info to master
-    bool fromSource = 9; // update schema from source schema
-    bool fromTarget = 10; // update schema from target schema
+  SchemaOp op = 1; // operation type
+  string task = 2; // task name
+  repeated string sources = 3; // source ID list
+  string database = 4; // database name
+  string table = 5; // table name
+  string schema = 6; // schema content, a `CREATE TABLE` statement
+  bool flush = 7; // flush table info and checkpoint
+  bool sync = 8; // sync the table info to master
+  bool fromSource = 9; // update schema from source schema
+  bool fromTarget = 10; // update schema from target schema
 }
 
 message OperateSchemaResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 message GetSubTaskCfgRequest {
-    // the task name
-    string name = 1;
+  // the task name
+  string name = 1;
 }
 
 message GetSubTaskCfgResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated string cfgs = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated string cfgs = 3;
 }
 
 enum CfgType {
-    InvalidType = 0;
-    TaskType = 1;
-    MasterType = 2;
-    WorkerType = 3;
-    SourceType = 4;
-    TaskTemplateType = 5;
+  InvalidType = 0;
+  TaskType = 1;
+  MasterType = 2;
+  WorkerType = 3;
+  SourceType = 4;
+  TaskTemplateType = 5;
 }
 
 message GetCfgRequest {
-    CfgType type = 1; // the config type
-    string name = 2; // the config name
+  CfgType type = 1; // the config type
+  string name = 2; // the config name
 }
 
 message GetCfgResponse {
-    bool result = 1;
-    string msg = 2;
-    string cfg = 3;
+  bool result = 1;
+  string msg = 2;
+  string cfg = 3;
 }
 
 message GetMasterCfgRequest {
 }
 
 message GetMasterCfgResponse {
-    string cfg = 1;
+  string cfg = 1;
 }
 
 message HandleErrorRequest {
-    ErrorOp op = 1; // operation type
-    string task = 2; // the task name
-    repeated string sources = 3; // source ID list
-    string binlogPos = 4; // binlog-pos (that's file:pos format)
-    repeated string sqls = 5; // sqls (use for replace)
+  ErrorOp op = 1; // operation type
+  string task = 2; // the task name
+  repeated string sources = 3; // source ID list
+  string binlogPos = 4; // binlog-pos (that's file:pos format)
+  repeated string sqls = 5; // sqls (use for replace)
 }
 
 message HandleErrorResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 message TransferSourceRequest {
-    string source = 1;
-    string worker = 2;
+  string source = 1;
+  string worker = 2;
 }
 
 message TransferSourceResponse {
-    bool result = 1;
-    string msg = 2;
+  bool result = 1;
+  string msg = 2;
 }
 
 message OperateRelayRequest {
-    RelayOpV2 op = 1;
-    string source = 2;
-    repeated string worker = 3;
+  RelayOpV2 op = 1;
+  string source = 2;
+  repeated string worker = 3;
 }
 
 message OperateRelayResponse {
-    bool result = 1;
-    string msg = 2;
-    repeated CommonWorkerResponse sources = 3;
+  bool result = 1;
+  string msg = 2;
+  repeated CommonWorkerResponse sources = 3;
 }
 
 enum RelayOpV2 {
-    InvalidRelayOpV2 = 0;
-    StartRelayV2 = 1;
-    StopRelayV2 = 2;
+  InvalidRelayOpV2 = 0;
+  StartRelayV2 = 1;
+  StopRelayV2 = 2;
 }
diff --git a/dm/errors.toml b/dm/errors.toml
index 9f0e66dd73e..d35537ee54e 100644
--- a/dm/errors.toml
+++ b/dm/errors.toml
@@ -3226,6 +3226,12 @@ description = ""
 workaround = "Please pause task by `dmctl pause-task`."
 tags = ["internal", "low"]
 
+[error.DM-scheduler-46033]
+message = "dm-worker with name %s not free"
+description = ""
+workaround = ""
+tags = ["internal", "low"]
+
 [error.DM-dmctl-48001]
 message = "can not create grpc connection"
 description = ""
diff --git a/dm/pkg/terror/error_list.go b/dm/pkg/terror/error_list.go
index 49bd3d906d3..3d12368e2e8 100644
--- a/dm/pkg/terror/error_list.go
+++ b/dm/pkg/terror/error_list.go
@@ -653,6 +653,7 @@ const (
 	codeSchedulerStartRelayOnBound
 	codeSchedulerStopRelayOnBound
 	codeSchedulerPauseTaskForTransferSource
+	codeSchedulerWorkerNotFree
 )
 
 // dmctl error code.
@@ -1305,7 +1306,7 @@ var (
 	ErrSchedulerStartRelayOnBound            = New(codeSchedulerStartRelayOnBound, ClassScheduler, ScopeInternal, LevelLow, "the source has `start-relay` automatically for bound worker, so it can't `start-relay` with worker name now", "Please stop relay by `stop-relay` without worker name first.")
 	ErrSchedulerStopRelayOnBound             = New(codeSchedulerStopRelayOnBound, ClassScheduler, ScopeInternal, LevelLow, "the source has `start-relay` automatically for bound worker, so it can't `stop-relay` with worker name now", "Please use `stop-relay` without worker name.")
 	ErrSchedulerPauseTaskForTransferSource   = New(codeSchedulerPauseTaskForTransferSource, ClassScheduler, ScopeInternal, LevelLow, "failed to auto pause tasks %s when transfer-source", "Please pause task by `dmctl pause-task`.")
-
+	ErrSchedulerWorkerNotFree                = New(codeSchedulerWorkerNotFree, ClassScheduler, ScopeInternal, LevelLow, "dm-worker with name %s not free", "")
 	// dmctl.
 	ErrCtlGRPCCreateConn = New(codeCtlGRPCCreateConn, ClassDMCtl, ScopeInternal, LevelHigh, "can not create grpc connection", "Please check your network connection.")
 	ErrCtlInvalidTLSCfg  = New(codeCtlInvalidTLSCfg, ClassDMCtl, ScopeInternal, LevelMedium, "invalid TLS config", "Please check the `ssl-ca`, `ssl-cert` and `ssl-key` config in command line.")
diff --git a/dm/tests/_utils/env_variables b/dm/tests/_utils/env_variables
index 2818e72294c..a0ae74c9ef1 100755
--- a/dm/tests/_utils/env_variables
+++ b/dm/tests/_utils/env_variables
@@ -27,6 +27,8 @@ WORKER2_PORT=8263
 WORKER3_PORT=8264
 WORKER4_PORT=18262
 WORKER5_PORT=18263
+WORKER1_NAME=worker1
+WORKER2_NAME=worker2
 SOURCE_ID1="mysql-replica-01"
 SOURCE_ID2="mysql-replica-02"
 RESET_MASTER=${RESET_MASTER:-true}
diff --git a/dm/tests/dmctl_basic/check_list/operate_source.sh b/dm/tests/dmctl_basic/check_list/operate_source.sh
index 58e82590db3..5c02f31443c 100644
--- a/dm/tests/dmctl_basic/check_list/operate_source.sh
+++ b/dm/tests/dmctl_basic/check_list/operate_source.sh
@@ -3,7 +3,7 @@
 function operate_source_empty_arg() {
 	run_dm_ctl $WORK_DIR "127.0.0.1:$MASTER_PORT" \
 		"operate-source" \
-		"operate-source <operate-type> \[config-file ...\] \[--print-sample-config\] \[flags\]" 1
+		"operate-source <operate-type> \[config-file ...\] \[-w worker\] \[--print-sample-config\] \[flags\]" 1
 }
 
 function operate_source_wrong_config_file() {
diff --git a/dm/tests/dmctl_command/run.sh b/dm/tests/dmctl_command/run.sh
index 8d9ba8efbd4..2b73bb8ac55 100644
--- a/dm/tests/dmctl_command/run.sh
+++ b/dm/tests/dmctl_command/run.sh
@@ -81,7 +81,22 @@ function run() {
 	cp $cur/conf/source1.yaml $WORK_DIR/source1.yaml
 	cp $cur/conf/source2.yaml $WORK_DIR/source2.yaml
 	sed -i "/relay-binlog-name/i\relay-dir: $WORK_DIR/worker1/relay_log" $WORK_DIR/source1.yaml
-	dmctl_operate_source create $WORK_DIR/source1.yaml $SOURCE_ID1
+	run_dm_ctl $WORK_DIR "127.0.0.1:$MASTER_PORT" \
+		"operate-source create $WORK_DIR/source1.yaml -w $WORKER1_NAME" \
+		"\"result\": true" 2 \
+		"\"source\": \"mysql-replica-01\"" 1
+	run_dm_ctl_with_retry $WORK_DIR "127.0.0.1:$MASTER_PORT" \
+		"list-member --name worker1" \
+		"\"stage\": \"bound\"" 1 \
+		"\"source\": \"mysql-replica-01\"" 1
+	run_dm_ctl $WORK_DIR "127.0.0.1:$MASTER_PORT" \
+		"operate-source create $WORK_DIR/source2.yaml -w wrong-worker" \
+		"\"result\": false" 1 \
+		"not exists" 1
+	run_dm_ctl $WORK_DIR "127.0.0.1:$MASTER_PORT" \
+		"operate-source create $WORK_DIR/source2.yaml -w worker1" \
+		"\"result\": false" 1 \
+		"not free" 1
 	dmctl_operate_source create $WORK_DIR/source2.yaml $SOURCE_ID2
 
 	# check wrong do-tables