diff --git a/src/controller/__tests__/layout.test.ts b/src/controller/__tests__/layout.test.ts
index 18332d1bf..c44ff6ade 100644
--- a/src/controller/__tests__/layout.test.ts
+++ b/src/controller/__tests__/layout.test.ts
@@ -7,6 +7,14 @@ const layoutController = container.resolve(LayoutController);
 const layoutService = container.resolve(LayoutService);
 
 describe('The layout controller', () => {
+    test('Should support to listen to the Workbench did mount event', () => {
+        const mockFn = jest.fn();
+        layoutService.onWorkbenchDidMount(mockFn);
+        layoutController.onWorkbenchDidMount();
+
+        expect(mockFn).toBeCalled();
+    });
+
     test('Should support to execute onPaneSizeChange', () => {
         const original = layoutService.setPaneSize;
         const mockFn = jest.fn();
diff --git a/src/controller/layout.ts b/src/controller/layout.ts
index 4c9fb0b59..10572e480 100644
--- a/src/controller/layout.ts
+++ b/src/controller/layout.ts
@@ -2,8 +2,10 @@ import 'reflect-metadata';
 import { container, singleton } from 'tsyringe';
 import { Controller } from 'mo/react/controller';
 import { ILayoutService, LayoutService } from 'mo/services';
+import { LayoutEvents } from 'mo/model/workbench/layout';
 
 export interface ILayoutController extends Partial<Controller> {
+    onWorkbenchDidMount?: () => void;
     onPaneSizeChange?: (splitPanePos: number[]) => void;
     onHorizontalPaneSizeChange?: (horizontalSplitPanePos: number[]) => void;
 }
@@ -26,4 +28,8 @@ export class LayoutController extends Controller implements ILayoutController {
     public onHorizontalPaneSizeChange = (horizontalSplitPanePos: number[]) => {
         this.layoutService.setHorizontalPaneSize(horizontalSplitPanePos);
     };
+
+    public onWorkbenchDidMount = () => {
+        this.layoutService.emit(LayoutEvents.OnWorkbenchDidMount);
+    };
 }
diff --git a/src/model/workbench/layout.ts b/src/model/workbench/layout.ts
index 43d5ed506..d35f77777 100644
--- a/src/model/workbench/layout.ts
+++ b/src/model/workbench/layout.ts
@@ -8,6 +8,10 @@ export enum MenuBarMode {
     vertical = 'vertical',
 }
 
+export enum LayoutEvents {
+    OnWorkbenchDidMount = 'workbench.didMount',
+}
+
 export interface ViewVisibility {
     hidden: boolean;
 }
diff --git a/src/provider/create.ts b/src/provider/create.ts
index beaaf8925..8921b1be1 100644
--- a/src/provider/create.ts
+++ b/src/provider/create.ts
@@ -14,7 +14,7 @@ export interface IConfigProps {
     defaultLocale?: string;
 }
 
-namespace stanalone {
+namespace standalone {
     let instance: InstanceService | null = null;
 
     /**
@@ -37,12 +37,12 @@ namespace stanalone {
 }
 
 export default function create(config: IConfigProps) {
-    return stanalone.create(config);
+    return standalone.create(config);
 }
 
 /**
  * Do NOT call it in production, ONLY used for test cases
  */
 export function clearInstance() {
-    stanalone.clearInstance();
+    standalone.clearInstance();
 }
diff --git a/src/services/__tests__/layoutService.test.ts b/src/services/__tests__/layoutService.test.ts
index 61a707342..b89df4415 100644
--- a/src/services/__tests__/layoutService.test.ts
+++ b/src/services/__tests__/layoutService.test.ts
@@ -1,5 +1,5 @@
 import { ID_APP } from 'mo/common/id';
-import { MenuBarMode, Position } from 'mo/model/workbench/layout';
+import { LayoutEvents, MenuBarMode, Position } from 'mo/model/workbench/layout';
 import 'reflect-metadata';
 import { container } from 'tsyringe';
 import { LayoutService } from '../workbench';
@@ -143,5 +143,14 @@ describe('The layout service', () => {
             layoutService.setAuxiliaryBar((pre) => !pre);
             expect(layoutService.getState().auxiliaryBar.hidden).toBe(true);
         });
+
+        test('Should support to listen to the Workbench did mount event', () => {
+            const mockFn = jest.fn();
+            layoutService.onWorkbenchDidMount(mockFn);
+
+            layoutService.emit(LayoutEvents.OnWorkbenchDidMount);
+
+            expect(mockFn).toBeCalled();
+        });
     });
 });
diff --git a/src/services/instanceService.tsx b/src/services/instanceService.tsx
index ae3ea9f9e..82692c260 100644
--- a/src/services/instanceService.tsx
+++ b/src/services/instanceService.tsx
@@ -122,7 +122,11 @@ export default class InstanceService
             this.emit(InstanceHookKind.beforeLoad);
             molecule.extension.load(others);
 
-            molecule.monacoService.initWorkspace(molecule.layout.container!);
+            molecule.layout.onWorkbenchDidMount(() => {
+                molecule.monacoService.initWorkspace(
+                    molecule.layout.container!
+                );
+            });
             this.rendered = true;
         }
 
diff --git a/src/services/workbench/layoutService.ts b/src/services/workbench/layoutService.ts
index c52c7dfe3..91beda3fa 100644
--- a/src/services/workbench/layoutService.ts
+++ b/src/services/workbench/layoutService.ts
@@ -6,6 +6,7 @@ import {
     Position,
     LayoutModel,
     MenuBarMode,
+    LayoutEvents,
 } from 'mo/model/workbench/layout';
 import { MenuBarEvent } from 'mo/model/workbench/menuBar';
 
@@ -87,6 +88,11 @@ export interface ILayoutService extends Component<ILayout> {
      * Reset all layout data as default value
      */
     reset(): void;
+    /**
+     * Listen to the workbench did mount event
+     * @param callback callback function
+     */
+    onWorkbenchDidMount(callback: Function): void;
 }
 
 @singleton()
@@ -101,6 +107,10 @@ export class LayoutService
         this.state = container.resolve(LayoutModel);
     }
 
+    public onWorkbenchDidMount(callback: Function): void {
+        this.subscribe(LayoutEvents.OnWorkbenchDidMount, callback);
+    }
+
     public get container() {
         // Make sure to get the latest dom element.
         this._container = document.getElementById(ID_APP) || document.body;
diff --git a/src/workbench/workbench.tsx b/src/workbench/workbench.tsx
index fb8f8805a..5d43adf48 100644
--- a/src/workbench/workbench.tsx
+++ b/src/workbench/workbench.tsx
@@ -1,5 +1,5 @@
 import 'reflect-metadata';
-import React from 'react';
+import React, { useEffect } from 'react';
 import { container } from 'tsyringe';
 
 import {
@@ -60,6 +60,7 @@ export function WorkbenchView(props: IWorkbench & ILayout & ILayoutController) {
         sidebar,
         statusBar,
         onPaneSizeChange,
+        onWorkbenchDidMount,
         onHorizontalPaneSizeChange,
         splitPanePos,
         horizontalSplitPanePos,
@@ -122,6 +123,11 @@ export function WorkbenchView(props: IWorkbench & ILayout & ILayoutController) {
         hideStatusBar
     );
 
+    useEffect(() => {
+        // call onWorkbenchDidMount after the first render
+        onWorkbenchDidMount?.();
+    }, []);
+
     return (
         <div id={ID_APP} className={appClassName} tabIndex={0}>
             <div className={workbenchFinalClassName}>
diff --git a/stories/workbench/0-Workbench.stories.tsx b/stories/workbench/0-Workbench.stories.tsx
index ecb9519e2..b835da108 100644
--- a/stories/workbench/0-Workbench.stories.tsx
+++ b/stories/workbench/0-Workbench.stories.tsx
@@ -13,17 +13,35 @@ moInstance.onBeforeInit(() => {
     molecule.builtin.inactiveModule('activityBarData');
 });
 
-export const IDEDemo = () => moInstance.render(<Workbench />);
-
-IDEDemo.story = {
-    name: 'Workbench',
+export default {
+    title: 'Workbench',
 };
 
-if (module.hot) {
-    module.hot.accept();
-}
+export const NormalWorkbench = () => moInstance.render(<Workbench />);
 
-export default {
-    title: 'Workbench',
-    component: IDEDemo,
+export const EmbeddedWorkbench = () => {
+    return (
+        <div
+            style={{
+                position: 'absolute',
+                width: '100%',
+                height: '100%',
+                top: 0,
+                left: 0,
+            }}
+        >
+            <h1 style={{ textAlign: 'center', lineHeight: '40px' }}>
+                Embedded
+            </h1>
+            <div
+                style={{
+                    position: 'relative',
+                    width: '100%',
+                    height: 'calc(100% - 40px)',
+                }}
+            >
+                {moInstance.render(<Workbench />)}
+            </div>
+        </div>
+    );
 };