diff --git a/packages-content-model/roosterjs-content-model-editor/lib/editor/plugins/ContentModelEditPlugin.ts b/packages-content-model/roosterjs-content-model-editor/lib/editor/plugins/ContentModelEditPlugin.ts
index c8d6e752571..bdfd6bbcae8 100644
--- a/packages-content-model/roosterjs-content-model-editor/lib/editor/plugins/ContentModelEditPlugin.ts
+++ b/packages-content-model/roosterjs-content-model-editor/lib/editor/plugins/ContentModelEditPlugin.ts
@@ -7,13 +7,6 @@ import { getOnDeleteEntityCallback } from '../utils/handleKeyboardEventCommon';
 import { getPendingFormat, setPendingFormat } from '../../modelApi/format/pendingFormat';
 import { IContentModelEditor } from '../../publicTypes/IContentModelEditor';
 import { isNodeOfType, normalizeContentModel } from 'roosterjs-content-model-dom';
-import {
-    getObjectKeys,
-    isBlockElement,
-    isCharacterValue,
-    isModifierKey,
-    Position,
-} from 'roosterjs-editor-dom';
 import {
     EditorPlugin,
     EntityOperationEvent,
@@ -24,8 +17,16 @@ import {
     NodeType,
     PluginEvent,
     PluginEventType,
+    PluginKeyDownEvent,
     SelectionRangeTypes,
 } from 'roosterjs-editor-types';
+import {
+    getObjectKeys,
+    isBlockElement,
+    isCharacterValue,
+    isModifierKey,
+    Position,
+} from 'roosterjs-editor-dom';
 
 // During IME input, KeyDown event will have "Process" as key
 const ProcessKey = 'Process';
@@ -91,7 +92,7 @@ export default class ContentModelEditPlugin implements EditorPlugin {
                     break;
 
                 case PluginEventType.KeyDown:
-                    this.handleKeyDownEvent(this.editor, event.rawEvent);
+                    this.handleKeyDownEvent(this.editor, event);
                     break;
 
                 case PluginEventType.ContentChanged:
@@ -112,13 +113,14 @@ export default class ContentModelEditPlugin implements EditorPlugin {
         }
     }
 
-    private handleKeyDownEvent(editor: IContentModelEditor, rawEvent: KeyboardEvent) {
+    private handleKeyDownEvent(editor: IContentModelEditor, event: PluginKeyDownEvent) {
+        const rawEvent = event.rawEvent;
         const which = rawEvent.which;
 
         if (!this.editWithContentModel || rawEvent.defaultPrevented) {
             // Other plugins already handled this event, so it is most likely content is already changed, we need to clear cached content model
             editor.cacheContentModel(null /*model*/);
-        } else if (!rawEvent.defaultPrevented) {
+        } else if (!rawEvent.defaultPrevented && !event.handledByEditFeature) {
             // TODO: Consider use ContentEditFeature and need to hide other conflict features that are not based on Content Model
             switch (which) {
                 case Keys.BACKSPACE:
diff --git a/packages/roosterjs-editor-core/lib/corePlugins/EditPlugin.ts b/packages/roosterjs-editor-core/lib/corePlugins/EditPlugin.ts
index 90d30290ee2..8cbaf4fa405 100644
--- a/packages/roosterjs-editor-core/lib/corePlugins/EditPlugin.ts
+++ b/packages/roosterjs-editor-core/lib/corePlugins/EditPlugin.ts
@@ -64,8 +64,9 @@ export default class EditPlugin implements PluginWithState<EditPluginState> {
         let hasFunctionKey = false;
         let features: GenericContentEditFeature<PluginEvent>[] | null = null;
         let ctrlOrMeta = false;
+        const isKeyDownEvent = event.eventType == PluginEventType.KeyDown;
 
-        if (event.eventType == PluginEventType.KeyDown) {
+        if (isKeyDownEvent) {
             const rawEvent = event.rawEvent;
             const range = this.editor?.getSelectionRange();
 
@@ -86,6 +87,9 @@ export default class EditPlugin implements PluginWithState<EditPluginState> {
                 feature.shouldHandleEvent(event, this.editor, ctrlOrMeta)
             ) {
                 feature.handleEvent(event, this.editor);
+                if (isKeyDownEvent) {
+                    event.handledByEditFeature = true;
+                }
                 break;
             }
         }
diff --git a/packages/roosterjs-editor-types/lib/event/PluginDomEvent.ts b/packages/roosterjs-editor-types/lib/event/PluginDomEvent.ts
index 35bf454e26f..9fdd9759bad 100644
--- a/packages/roosterjs-editor-types/lib/event/PluginDomEvent.ts
+++ b/packages/roosterjs-editor-types/lib/event/PluginDomEvent.ts
@@ -34,6 +34,16 @@ export interface PluginScrollEventData {
     scrollContainer: HTMLElement;
 }
 
+/**
+ * Data of PluginKeyDownEvent
+ */
+export interface PluginKeyDownEventData {
+    /**
+     * Whether this event is handled by edit feature
+     */
+    handledByEditFeature: boolean;
+}
+
 /**
  * A base interface of all DOM events
  */
@@ -79,7 +89,8 @@ export type PluginMouseEvent = PluginMouseDownEvent | PluginMouseUpEvent | Plugi
  * This interface represents a PluginEvent wrapping native KeyDown event
  */
 export interface PluginKeyDownEvent
-    extends PluginDomEventBase<PluginEventType.KeyDown, KeyboardEvent> {}
+    extends PluginKeyDownEventData,
+        PluginDomEventBase<PluginEventType.KeyDown, KeyboardEvent> {}
 
 /**
  * This interface represents a PluginEvent wrapping native KeyPress event
@@ -148,7 +159,8 @@ export type CompatiblePluginMouseEvent =
  * This interface represents a PluginEvent wrapping native KeyDown event
  */
 export interface CompatiblePluginKeyDownEvent
-    extends PluginDomEventBase<CompatiblePluginEventType.KeyDown, KeyboardEvent> {}
+    extends PluginKeyDownEventData,
+        PluginDomEventBase<CompatiblePluginEventType.KeyDown, KeyboardEvent> {}
 
 /**
  * This interface represents a PluginEvent wrapping native KeyPress event
diff --git a/packages/roosterjs-editor-types/lib/event/index.ts b/packages/roosterjs-editor-types/lib/event/index.ts
index 9c764664547..cd4838bd62b 100644
--- a/packages/roosterjs-editor-types/lib/event/index.ts
+++ b/packages/roosterjs-editor-types/lib/event/index.ts
@@ -69,6 +69,7 @@ export {
     PluginScrollEventData,
     PluginMouseUpEventData,
     PluginContextMenuEventData,
+    PluginKeyDownEventData,
 } from './PluginDomEvent';
 export { PluginEvent } from './PluginEvent';
 export {