diff --git a/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-deviceUsageStatistics.md b/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-deviceUsageStatistics.md
index 3b9a1ebbe44a3efd2051ae690f88ac7c7a7bb50b..9af87040cc96ec62ef479781f318bda2975d55a2 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-deviceUsageStatistics.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-deviceUsageStatistics.md
@@ -947,7 +947,6 @@ queryAppGroup(bundleName : string, callback: AsyncCallback<number>): void
     } catch (error) {
         console.log('BUNDLE_ACTIVE queryAppGroup throw error, code is: ' + error.code + ',message is: ' + error.message);
     }
-});
 ```
 
 ## usageStatistics.setAppGroup
@@ -992,7 +991,7 @@ setAppGroup(bundleName: string, newGroup: GroupType): Promise<void>
 
 ```javascript
     let bundleName = "com.example.deviceUsageStatistics";
-    let newGroup = bundleState.GroupType.ACTIVE_GROUP_DAILY;
+    let newGroup = usageStatistics.GroupType.DAILY_GROUP;
 
     try{
         usageStatistics.setAppGroup(bundleName, newGroup).then( () => {
@@ -1042,7 +1041,7 @@ setAppGroup(bundleName: string, newGroup: GroupType, callback: AsyncCallback<
 
 ```javascript
     let bundleName = "com.example.deviceUsageStatistics";
-    let newGroup = bundleState.GroupType.ACTIVE_GROUP_DAILY;
+    let newGroup = usageStatistics.GroupType.DAILY_GROUP;
 
     try{
         usageStatistics.setAppGroup(bundleName, newGroup, (err) => {