diff --git a/zh-cn/application-dev/background-task-management/background-task-dev-guide.md b/zh-cn/application-dev/background-task-management/background-task-dev-guide.md
index 0c776e6816bad41ef6979e87df3cf64ddfe1b84a..05a3572937cbe8421a4b0172e1afbda1747dba27 100644
--- a/zh-cn/application-dev/background-task-management/background-task-dev-guide.md
+++ b/zh-cn/application-dev/background-task-management/background-task-dev-guide.md
@@ -34,11 +34,7 @@ import backgroundTaskManager from '@ohos.backgroundTaskManager';
    import backgroundTaskManager from '@ohos.backgroundTaskManager';
    let myReason = 'test requestSuspendDelay';
    let delayInfo = backgroundTaskManager.requestSuspendDelay(myReason, (val) => {
-       if(val.code === 0) {
-           console.info("Operation time out: " + val.data);
-       } else {
-           console.info("Operation failed: " + val.data);
-       }
+       console.info("Request suspend delay will time out.");
    });
    var id = delayInfo.requestId;console.info("requestId is: " + id);
    ```
@@ -65,11 +61,7 @@ import backgroundTaskManager from '@ohos.backgroundTaskManager';
 let myReason = 'test requestSuspendDelay';
 // 申请延迟挂起
 let delayInfo = backgroundTaskManager.requestSuspendDelay(myReason, (val) => {
-    if(val.code === 0) {
-        console.info("Operation time out: " + val.data);
-    } else {
-        console.info("Operation failed: " + val.data);
-    }
+    console.info("Request suspend delay will time out.");
 });
 // 打印延迟挂起信息
 var id = delayInfo.requestId;
diff --git a/zh-cn/application-dev/reference/apis/js-apis-background-task-mgmt.md b/zh-cn/application-dev/reference/apis/js-apis-background-task-mgmt.md
index bdab942d855725655b9333057609ef423639c588..dedd1e64901222ab3f9a036aaa49833cc65b4216 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-background-task-mgmt.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-background-task-mgmt.md
@@ -39,11 +39,7 @@ requestSuspendDelay(reason: string, callback: Callback<void>): DelaySuspen
   ```
   let myReason = 'test requestSuspendDelay';
   let delayInfo = backgroundTaskManager.requestSuspendDelay(myReason, (val) => {
-      if(val.code === 0) {
-          console.info("Operation time out: " + val.data);
-      } else {
-          console.info("Operation failed: " + val.data);
-      }
+      console.info("Request suspend delay will time out.");
   })
   ```
 
@@ -64,7 +60,7 @@ getRemainingDelayTime(requestId: number, callback: AsyncCallback<number>):
   ```
   let id = 1;
   backgroundTaskManager.getRemainingDelayTime(id, (err, res) => {
-      if(err) {
+      if(err.data === 0) {
           console.log('promise => Operation succeeded. Data: ' + JSON.stringify(res));
       } else {
           console.log('promise => Operation failed. Cause: ' + err.data);