diff --git a/cmd/commands/add.go b/cmd/commands/add.go
index e600d77b..937e3201 100644
--- a/cmd/commands/add.go
+++ b/cmd/commands/add.go
@@ -17,7 +17,8 @@
 package commands
 
 import (
-	"errors"
+	"fmt"
+	"github.com/pterm/pterm"
 	"github.com/urfave/cli/v2"
 	"github.com/version-fox/vfox/internal"
 )
@@ -43,29 +44,22 @@ var Add = &cli.Command{
 // addCmd is the command to add a plugin of sdk
 func addCmd(ctx *cli.Context) error {
 	args := ctx.Args()
-	var errStr = ""
-	var source = ""
-	var alias = ""
-	var err error
-
-	if args.Len() == 1 {
-		source = ctx.String("source")
-		alias = ctx.String("alias")
-	}
 
 	manager := internal.NewSdkManager()
-	for _, sdkName := range args.Slice() {
-		err = manager.Add(sdkName, source, alias)
-		if err != nil {
-			errStr += err.Error() + "\r\n"
-			continue
+	defer manager.Close()
+
+	// multiple plugins
+	if args.Len() > 1 {
+		for index, sdkName := range args.Slice() {
+			pterm.Printf("[%s/%d]: Adding %s plugin...\n", pterm.Green(index+1), args.Len(), pterm.Green(sdkName))
+			if err := manager.Add(sdkName, "", ""); err != nil {
+				pterm.Println(fmt.Sprintf("Add plugin(%s) failed: %s", pterm.Red(sdkName), err.Error()))
+			}
 		}
+		return nil
+	} else {
+		source := ctx.String("source")
+		alias := ctx.String("alias")
+		return manager.Add(args.First(), source, alias)
 	}
-	manager.Close()
-	if errStr != "" {
-		err = errors.New(errStr)
-		return err
-	}
-
-	return nil
 }
diff --git a/internal/manager.go b/internal/manager.go
index 9173d318..2c78556c 100644
--- a/internal/manager.go
+++ b/internal/manager.go
@@ -384,6 +384,24 @@ func (m *Manager) downloadPlugin(downloadUrl string) (string, error) {
 	return path, nil
 }
 
+func (m *Manager) pluginExist(name, alias string) bool {
+	pname := name
+	if len(alias) > 0 {
+		pname = alias
+	}
+	return util.FileExists(filepath.Join(m.PathMeta.PluginPath, pname))
+}
+
+// Add a plugin to plugin home directory
+// 1. If the plugin is an official plugin, fetch the plugin manifest from the registry.
+// 2. If the plugin is a custom plugin, install the plugin from the specified URL.
+// 3. Validate the plugin and install it to the plugin home directory.
+// examples:
+//
+//	vfox add nodejs
+//	vfox add --alias node nodejs
+//	vfox add --source /path/to/plugin.zip
+//	vfox add --source /path/to/plugin.zip --alias node [nodejs]
 func (m *Manager) Add(pluginName, url, alias string) error {
 	// For compatibility with older versions of plugin names <category>/<plugin-name>
 	if strings.Contains(pluginName, "/") {
@@ -394,11 +412,14 @@ func (m *Manager) Add(pluginName, url, alias string) error {
 	if len(alias) > 0 {
 		pname = alias
 	}
-	installPath := filepath.Join(m.PathMeta.PluginPath, pname)
-	if util.FileExists(installPath) {
-		return fmt.Errorf("plugin named %s already exists", pname)
+	var installPath string
+	// first quick check.
+	if pname != "" {
+		installPath = filepath.Join(m.PathMeta.PluginPath, pname)
+		if util.FileExists(installPath) {
+			return fmt.Errorf("plugin named %s already exists", pname)
+		}
 	}
-
 	// official plugin
 	if len(url) == 0 {
 		fmt.Printf("Fetching %s manifest... \n", pterm.Green(pluginName))
@@ -416,6 +437,14 @@ func (m *Manager) Add(pluginName, url, alias string) error {
 		_ = os.RemoveAll(tempPlugin.Path)
 		tempPlugin.Close()
 	}()
+	// check plugin exist again as the plugin may be from custom source without plugin name and alias.
+	if pname == "" {
+		pname = tempPlugin.Name
+		installPath = filepath.Join(m.PathMeta.PluginPath, pname)
+		if util.FileExists(installPath) {
+			return fmt.Errorf("plugin named %s already exists", pname)
+		}
+	}
 	if err = os.Rename(tempPlugin.Path, installPath); err != nil {
 		return fmt.Errorf("install plugin error: %w", err)
 	}