diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index 85b513a397ee37166ca94ccc7937cd2c4f621abb..c2bea47077a175c3b73e31a24db729b693db1ea2 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -24,7 +24,7 @@ export default class EntryAbility extends UIAbility {
   }
 
   onDestroy() {
-    WorkerManager.terminalSelf();
+    WorkerManager.getInstance().terminalSelf();
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onDestroy');
   }
 
diff --git a/entry/src/main/ets/view/AdjustContentView.ets b/entry/src/main/ets/view/AdjustContentView.ets
index 868c4c5d4edafc19df3de4b503e08028927cba48..d84c3e5485baf8966adb9bc038c6b9ecbe6c5ca8 100644
--- a/entry/src/main/ets/view/AdjustContentView.ets
+++ b/entry/src/main/ets/view/AdjustContentView.ets
@@ -102,11 +102,11 @@ struct SliderCustom {
   });
 
   aboutToAppear(): void {
-    WorkerManager.onMessage((event: MessageEvents) => {
+    WorkerManager.getInstance().onMessage((event: MessageEvents) => {
       this.updatePixelMap(event);
     })
-    WorkerManager.onExit();
-    WorkerManager.onMessageError();
+    WorkerManager.getInstance().onExit();
+    WorkerManager.getInstance().onMessageError();
   }
 
   build() {
@@ -170,7 +170,7 @@ struct SliderCustom {
     this.pixelMap.readPixelsToBuffer(bufferArray)
       .then(() => {
         let message = new MessageItem(bufferArray, sliderValue, value, type);
-        WorkerManager.postMessage(message);
+        WorkerManager.getInstance().postMessage(message);
         if (this.postState) {
           this.deviceListDialogController.open();
         }
diff --git a/entry/src/main/ets/workers/WorkerManager.ets b/entry/src/main/ets/workers/WorkerManager.ets
index 1a9ba37fa61c0a325ed81cc41511dd9017ce093b..48cb7fe9532d8363b32d98973d55ba36ee8c07ba 100644
--- a/entry/src/main/ets/workers/WorkerManager.ets
+++ b/entry/src/main/ets/workers/WorkerManager.ets
@@ -22,46 +22,57 @@ import { MessageItem } from "../viewModel/MessageItem";
  * Main thread worker
  */
 export class WorkerManager {
-  private static instance: worker.ThreadWorker | undefined = undefined;
+  private static instance: WorkerManager | undefined = undefined;
+  private static workerThread: worker.ThreadWorker | undefined = undefined;
 
   private constructor() {
   }
 
-  public static getInstance(): worker.ThreadWorker {
+  public static getInstance(): WorkerManager {
     if (!WorkerManager.instance) {
-      WorkerManager.instance = new worker.ThreadWorker(CommonConstants.WORKER_FILE);
+      WorkerManager.instance = new WorkerManager();
+      WorkerManager.workerThread = new worker.ThreadWorker(CommonConstants.WORKER_FILE);
     }
     return WorkerManager.instance;
   }
 
-  public static postMessage(message: MessageItem): void {
+  public postMessage(message: MessageItem): void {
     try {
-      WorkerManager.getInstance().postMessage(message);
+      WorkerManager.workerThread?.postMessage(message);
     } catch (error) {
       hilog.error(0x0000, 'WorkerManager', 'Failed to possMessage', `on message error ${JSON.stringify(error)}`);
     }
   }
 
-  public static onExit(): void {
-    WorkerManager.getInstance().onexit = () => {
+  public onExit(): void {
+    if (!WorkerManager.workerThread) {
+      return;
+    }
+    WorkerManager.workerThread.onexit = () => {
       hilog.info(0x0000, 'WorkerManager', 'worker exit. Cause: %{public}s');
     }
   }
 
-  public static onMessageError(): void {
-    WorkerManager.getInstance().onmessageerror = (event: MessageEvents) => {
+  public onMessageError(): void {
+    if (!WorkerManager.workerThread) {
+      return;
+    }
+    WorkerManager.workerThread.onmessageerror = (event: MessageEvents) => {
       hilog.error(0x0000, 'WorkerManager', 'Main thread post message error. Cause: %{public}s',
         `on worker error ${JSON.stringify(event)}`);
     }
   }
 
-  public static onMessage(callback: (event: MessageEvents) => void): void {
-    WorkerManager.getInstance().onmessage = callback;
+  public onMessage(callback: (event: MessageEvents) => void): void {
+    if (!WorkerManager.workerThread) {
+      return;
+    }
+    WorkerManager.workerThread.onmessage = callback;
   }
 
-  public static terminalSelf(): void {
+  public terminalSelf(): void {
     try {
-      WorkerManager.getInstance().terminate();
+      WorkerManager.workerThread?.terminate();
       hilog.info(0x0000, 'WorkerManager', 'worker terminal success');
     } catch (error) {
       hilog.error(0x0000, 'WorkerManager', 'Failed to terminalSelf. Cause: %{public}s',