diff --git a/zh-cn/application-dev/reference/apis/js-apis-workScheduler.md b/zh-cn/application-dev/reference/apis/js-apis-workScheduler.md
index 899d41aa44381b69b70098dd08de49c5e61738d8..d082b3ee5fbac9e62e5d3d15525b8828570f55ff 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-workScheduler.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-workScheduler.md
@@ -45,7 +45,14 @@ startWork(work: WorkInfo): boolean
       isRepeat: false,
       isPersisted: true,
       bundleName: "com.example.myapplication",
-      abilityName: "MyExtension"
+      abilityName: "MyExtension",
+      parameters: {
+          mykey0: 2222,
+          mykey1: "ssssssssssssssssssssssssss",
+          mykey2: true,
+          mykey3: 1.5,
+          mykey4: 213749534591254587511
+      }
   }
   var res = workScheduler.startWork(workInfo);
   console.info("workschedulerLog res:" + res);
@@ -81,7 +88,14 @@ stopWork(work: WorkInfo, needCancel?: boolean): boolean
       isRepeat: false,
       isPersisted: true,
       bundleName: "com.example.myapplication",
-      abilityName: "MyExtension"
+      abilityName: "MyExtension",
+      parameters: {
+          mykey0: 2222,
+          mykey1: "ssssssssssssssssssssssssss",
+          mykey2: true,
+          mykey3: 1.5,
+          mykey4: 213749534591254587511
+      }
      }
   var res = workScheduler.stopWork(workInfo, false);
   console.info("workschedulerLog res:" + res);
@@ -299,6 +313,7 @@ isLastWorkTimeOut(workId: number): Promise\<boolean>
 | isPersisted     | boolean                           | 否    | 是否持久化保存工作        |
 | isDeepIdle      | boolean                           | 否    | 是否要求设备进入空闲状态     |
 | idleWaitTime    | number                            | 否    | 空闲等待时间           |
+| parameters      | {[key: string]: any}              | 否    | 额外数据           |
 
 ## NetworkType
 触发工作的网络类型。
diff --git a/zh-cn/application-dev/task-management/work-scheduler-dev-guide.md b/zh-cn/application-dev/task-management/work-scheduler-dev-guide.md
index 412d2d2cb2cc5882fe29f1d83c39cf6eb0e3c0b5..737af092f22d026b366d8229c8612131186a9274 100644
--- a/zh-cn/application-dev/task-management/work-scheduler-dev-guide.md
+++ b/zh-cn/application-dev/task-management/work-scheduler-dev-guide.md
@@ -50,6 +50,7 @@ storageRequest|存储状态|    StorageRequest
 isRepeat|是否循环任务|    boolean
 repeatCycleTime |循环间隔|    number
 repeatCount    |循环次数| number
+parameters    |额外数据| {[key: string]: any}
 
 **表3** 延迟任务回调接口
 
@@ -85,7 +86,14 @@ onWorkStop(work: WorkInfo): void; | 延迟调度任务结束回调
         isRepeat: false,
         isPersisted: true,
         bundleName: "com.example.myapplication",
-        abilityName: "MyExtension"
+        abilityName: "MyExtension",
+        parameters: {
+            mykey0: 2222,
+            mykey1: "ssssssssssssssssssssssssss",
+            mykey2: true,
+            mykey3: 1.5,
+            mykey4: 213749534591254587511
+        }
     }
     var res = workScheduler.startWork(workInfo);
     console.info("workschedulerLog res:" + res);
@@ -103,7 +111,14 @@ onWorkStop(work: WorkInfo): void; | 延迟调度任务结束回调
         isRepeat: false,
         isPersisted: true,
         bundleName: "com.example.myapplication",
-        abilityName: "MyExtension"
+        abilityName: "MyExtension",
+        parameters: {
+            mykey0: 2222,
+            mykey1: "ssssssssssssssssssssssssss",
+            mykey2: true,
+            mykey3: 1.5,
+            mykey4: 213749534591254587511
+        }
     }
     var res = workScheduler.stopWork(workInfo, false);
     console.info("workschedulerLog res:" + res);
diff --git a/zh-cn/application-dev/task-management/work-scheduler-overview.md b/zh-cn/application-dev/task-management/work-scheduler-overview.md
index c2ce0fe7fe8203b8863fe8688131a33e9d1b0d5b..16465205d0ac951a8323b1dfaf262e600b0bdf2e 100644
--- a/zh-cn/application-dev/task-management/work-scheduler-overview.md
+++ b/zh-cn/application-dev/task-management/work-scheduler-overview.md
@@ -28,4 +28,6 @@
 
 （2）至少要设置一个满足的条件。
 
-（3）重复任务时间间隔至少20分钟，当设置重复任务时间间隔时，必须设置始终重复和重复次数中的一个。
\ No newline at end of file
+（3）重复任务时间间隔至少20分钟，当设置重复任务时间间隔时，必须设置始终重复和重复次数中的一个。
+
+（4）额外数据支持number、string、bool三种类型。
\ No newline at end of file