diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md
index fad982da3616da3355b5f28538cc36663db829ce..bcb46120dba1dc2ab2414246106d1dadddf70f0c 100755
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md
@@ -20,7 +20,7 @@ ohos.permission.MANAGE_MISSIONS
 
 on(type:"mission", listener: MissionListener): number;
 
-注册系统任务状态监听。
+注册系统任务状态监听器。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -32,13 +32,13 @@ on(type:"mission", listener: MissionListener): number;
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | listener | MissionListener | 是 | 系统任务监听方法。 |
+  | listener | MissionListener | 是 | 系统任务监听器。 |
 
 **返回值：**
 
   | 类型 | 说明 |
   | -------- | -------- |
-  | number | 监听方法的index值，由系统创建，在注册系统任务状态监听时分配，和监听方法一一对应 。 |
+  | number | 监听器的index值，由系统创建，在注册系统任务状态监听时分配，和监听器一一对应 。 |
 
 **示例：**
 
@@ -51,7 +51,8 @@ var listener = {
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
     onMissionMovedToFront: function (mission) {console.log("--------onMissionMovedToFront-------")},
     onMissionIconUpdated: function (mission, icon) {console.log("--------onMissionIconUpdated-------")},
-    onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")}
+    onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")},
+    onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 
 var listenerId = -1;
@@ -105,7 +106,7 @@ export default class MainAbility extends UIAbility {
 
 off(type: "mission", listenerId: number, callback: AsyncCallback<void>): void;
 
-取消任务状态监听。
+解注册任务状态监听器。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -117,7 +118,7 @@ off(type: "mission", listenerId: number, callback: AsyncCallback<void>): v
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | listenerId | number | 是 | 系统任务状态监听方法的index值，和监听方法一一对应，由registerMissionListener方法返回。 |
+  | listenerId | number | 是 | 系统任务状态监器法的index值，和监听器一一对应，由on方法返回。 |
   | callback | AsyncCallback<void> | 是 | 执行结果回调函数。 |
 
 **示例：**
@@ -131,7 +132,8 @@ var listener = {
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
     onMissionMovedToFront: function (mission) {console.log("--------onMissionMovedToFront-------")},
     onMissionIconUpdated: function (mission, icon) {console.log("--------onMissionIconUpdated-------")},
-    onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")}
+    onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")},
+    onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 
 var listenerId = -1;
@@ -185,7 +187,7 @@ export default class MainAbility extends UIAbility {
 
 off(type: "mission", listenerId: number): Promise<void>;
 
-取消任务状态监听，以promise方式返回执行结果。
+解注册任务状态监听，以promise方式返回执行结果。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -197,7 +199,7 @@ off(type: "mission", listenerId: number): Promise<void>;
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | listenerId | number | 是 | 系统任务状态监听方法的index值，和监听方法一一对应，由registerMissionListener方法返回。 |
+  | listenerId | number | 是 | 系统任务状态监听器的index值，和监听器一一对应，由on方法返回。 |
 
 **返回值：**
 
@@ -216,7 +218,8 @@ var listener = {
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
     onMissionMovedToFront: function (mission) {console.log("--------onMissionMovedToFront-------")},
     onMissionIconUpdated: function (mission, icon) {console.log("--------onMissionIconUpdated-------")},
-    onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")}
+    onMissionClosed: function (mission) {console.log("--------onMissionClosed-------")},
+    onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 
 var listenerId = -1;
@@ -292,7 +295,12 @@ getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback<M
   try {
     var allMissions=missionManager.getMissionInfos("",10).catch(function(err){console.log(err);});
       missionManager.getMissionInfo("", allMissions[0].missionId, (error, mission) => {
-        console.log("getMissionInfo is called, error.code = " + error.code)
+        if (error.code) {
+          console.log("getMissionInfo failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+        }
+
         console.log("mission.missionId = " + mission.missionId);
         console.log("mission.runningState = " + mission.runningState);
         console.log("mission.lockedState = " + mission.lockedState);
@@ -369,7 +377,11 @@ getMissionInfos(deviceId: string, numMax: number, callback: AsyncCallback<Arr
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfo failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
     })
@@ -442,14 +454,22 @@ getMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback&
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
 
-      missionManager.getMissionSnapShot("", id, (error, snapshot) => {
-  	    console.log("getMissionSnapShot is called, error.code = " + error.code);
-  	    console.log("bundleName = " + snapshot.ability.bundleName);
+      missionManager.getMissionSnapShot("", id, (err, snapshot) => {
+          if (err.code) {
+              console.log("getMissionInfos failed, err.code:" + JSON.stringify(err.code) +
+                "err.message:" + JSON.stringify(err.message));
+              return;
+          }
+          console.log("bundleName = " + snapshot.ability.bundleName);
       })
     })
   } catch (paramError) {
@@ -507,7 +527,7 @@ getMissionSnapShot(deviceId: string, missionId: number): Promise<MissionSnaps
 
 getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback\<MissionSnapshot>): void;
 
-使用给定的任务ID获取任务低分辨率快照。
+获取任务低分辨率快照。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -528,13 +548,21 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: A
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
 
       missionManager.getLowResolutionMissionSnapShot("", id, (error, snapshot) => {
-  	    console.log("getLowResolutionMissionSnapShot is called, error.code = " + error.code);
+        if (error.code) {
+          console.log("getLowResolutionMissionSnapShot failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+        }
   	    console.log("bundleName = " + snapshot.ability.bundleName);
       })
     })
@@ -548,7 +576,7 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: A
 
 getLowResolutionMissionSnapShot(deviceId: string, missionId: number): Promise\<MissionSnapshot>;
 
-使用给定的任务ID获取任务低分辨率快照。
+获取任务低分辨率快照。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -614,7 +642,12 @@ lockMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
+
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
@@ -698,7 +731,11 @@ unlockMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
@@ -785,7 +822,11 @@ clearMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
@@ -917,7 +958,11 @@ moveMissionToFront(missionId: number, callback: AsyncCallback&lt;void&gt;): void
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
@@ -957,7 +1002,11 @@ moveMissionToFront(missionId: number, options: StartOptions, callback: AsyncCall
   ```ts
   try {
     missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
       var id = missions[0].missionId;
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-missionManager.md b/zh-cn/application-dev/reference/apis/js-apis-application-missionManager.md
index f5cc6343be1662b1f2916930683f02bc263936bb..deb071195ff0101ee49e8d7f15c73bc6373677f4 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-missionManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-missionManager.md
@@ -20,7 +20,7 @@ ohos.permission.MANAGE_MISSIONS
 
 registerMissionListener(listener: MissionListener): number;
 
-注册系统任务状态监听。
+注册系统任务状态监听器。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -32,13 +32,13 @@ registerMissionListener(listener: MissionListener): number;
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | listener | [MissionListener](js-apis-inner-application-missionListener.md) | 是 | 系统任务监听方法。 |
+  | listener | [MissionListener](js-apis-inner-application-missionListener.md) | 是 | 系统任务监听器。 |
 
 **返回值：**
 
   | 类型 | 说明 |
   | -------- | -------- |
-  | number | 监听方法的index值，由系统创建，在注册系统任务状态监听时分配，和监听方法一一对应&nbsp;。 |
+  | number | 监听器的index值，由系统创建，在注册系统任务状态监听器时分配，和监听器一一对应&nbsp;。 |
 
 **示例：**
 
@@ -61,7 +61,7 @@ var listenerid = missionManager.registerMissionListener(listener);
 
 unregisterMissionListener(listenerId: number, callback: AsyncCallback&lt;void&gt;): void;
 
-取消任务状态监听。
+解注册任务状态监听器。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -73,7 +73,7 @@ unregisterMissionListener(listenerId: number, callback: AsyncCallback&lt;void&gt
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | listenerId | number | 是 | 系统任务状态监听方法的index值，和监听方法一一对应，由registerMissionListener方法返回。 |
+  | listenerId | number | 是 | 系统任务状态监听器的index值，和监听器一一对应，由registerMissionListener方法返回。 |
   | callback | AsyncCallback&lt;void&gt; | 是 | 执行结果回调函数。 |
 
 **示例：**
@@ -101,7 +101,7 @@ unregisterMissionListener(listenerId: number, callback: AsyncCallback&lt;void&gt
 
 unregisterMissionListener(listenerId: number): Promise&lt;void&gt;;
 
-取消任务状态监听，以promise方式返回执行结果。
+反注册任务状态监听器，以promise方式返回执行结果。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -113,7 +113,7 @@ unregisterMissionListener(listenerId: number): Promise&lt;void&gt;;
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | listenerId | number | 是 | 系统任务状态监听方法的index值，和监听方法一一对应，由registerMissionListener方法返回。 |
+  | listenerId | number | 是 | 系统任务状态监听器的index值，和监听器一一对应，由registerMissionListener方法返回。 |
 
 **返回值：**
 
@@ -146,7 +146,7 @@ unregisterMissionListener(listenerId: number): Promise&lt;void&gt;;
 
 getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback&lt;MissionInfo&gt;): void;
 
-获取任务信息，以异步回调的方式返回任务信息。
+获取单个任务信息，以异步回调的方式返回任务信息。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -169,7 +169,12 @@ getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback&lt;M
 
   var allMissions=missionManager.getMissionInfos("",10).catch(function(err){console.log(err);});
       missionManager.getMissionInfo("", allMissions[0].missionId, (error, mission) => {
-        console.log("getMissionInfo is called, error.code = " + error.code)
+        if (error.code) {
+          console.log("getMissionInfo failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+        }
+
         console.log("mission.missionId = " + mission.missionId);
         console.log("mission.runningState = " + mission.runningState);
         console.log("mission.lockedState = " + mission.lockedState);
@@ -184,7 +189,7 @@ getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback&lt;M
 
 getMissionInfo(deviceId: string, missionId: number): Promise&lt;MissionInfo&gt;;
 
-获取任务信息，以promise方式返回任务信息。
+获取单个任务信息，以promise方式返回任务信息。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -242,7 +247,11 @@ getMissionInfos(deviceId: string, numMax: number, callback: AsyncCallback&lt;Arr
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-      console.log("getMissionInfos is called, error.code = " + error.code);
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
   })
@@ -311,14 +320,22 @@ getMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback&
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
 
     missionManager.getMissionSnapShot("", id, (error, snapshot) => {
-  	console.log("getMissionSnapShot is called, error.code = " + error.code);
-  	console.log("bundleName = " + snapshot.ability.bundleName);
+      if (error.code) {
+          console.log("getMissionSnapShot failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
+      console.log("bundleName = " + snapshot.ability.bundleName);
   })
   })
   ```
@@ -371,7 +388,7 @@ getMissionSnapShot(deviceId: string, missionId: number): Promise&lt;MissionSnaps
 
 getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback\<MissionSnapshot>): void;
 
-使用给定的任务ID获取任务低分辨率快照。
+获取任务低分辨率快照。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -393,14 +410,22 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: A
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
 
     missionManager.getLowResolutionMissionSnapShot("", id, (error, snapshot) => {
-  	console.log("getLowResolutionMissionSnapShot is called, error.code = " + error.code);
-  	console.log("bundleName = " + snapshot.ability.bundleName);
+      if (error.code) {
+          console.log("getLowResolutionMissionSnapShot failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
+  	  console.log("bundleName = " + snapshot.ability.bundleName);
   })
   })
   ```
@@ -410,7 +435,7 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: A
 
 getLowResolutionMissionSnapShot(deviceId: string, missionId: number): Promise\<MissionSnapshot>;
 
-使用给定的任务ID获取任务低分辨率快照。
+获取任务低分辨率快照。
 
 **需要权限**：ohos.permission.MANAGE_MISSIONS
 
@@ -475,7 +500,11 @@ lockMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
@@ -554,7 +583,11 @@ unlockMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
@@ -637,7 +670,11 @@ clearMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
@@ -768,7 +805,11 @@ moveMissionToFront(missionId: number, callback: AsyncCallback&lt;void&gt;): void
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
@@ -806,7 +847,11 @@ moveMissionToFront(missionId: number, options: StartOptions, callback: AsyncCall
   import missionManager from '@ohos.application.missionManager'
 
   missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
+    if (error.code) {
+        console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+        return;
+    }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
     var id = missions[0].missionId;
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionInfo.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionInfo.md
index 3f3fd0c235df03dd07fc5ccb5705675f8e1056e7..1558a06859d60d4302a217238c8d029143009b6f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionInfo.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionInfo.md
@@ -1,6 +1,6 @@
 # MissionInfo
 
-表示Ability对应的任务信息，可以通过[getMissionInfo](js-apis-app-ability-missionManager.md#missionmanagergetmissioninfo)获取。
+表示任务的详细信息，可以通过[getMissionInfo](js-apis-app-ability-missionManager.md#missionmanagergetmissioninfo)获取。
 
 **系统能力**：以下各项对应的系统能力均为SystemCapability.Ability.AbilityRuntime.Mission
 
@@ -19,16 +19,27 @@
 
 **示例：**
 ```ts
-import missionManager from '@ohos.application.missionManager'
+import missionManager from '@ohos.app.ability.missionManager'
 
-missionManager.getMissionInfo("12345", 1, (error, data) => {
-    console.info('getMissionInfo missionId is:' + JSON.stringify(data.missionId));
-    console.info('getMissionInfo runningState is:' + JSON.stringify(data.runningState));
-    console.info('getMissionInfo lockedState is:' + JSON.stringify(data.lockedState));
-    console.info('getMissionInfo timestamp is:' + JSON.stringify(data.timestamp));
-    console.info('getMissionInfo want is:' + JSON.stringify(data.want));
-    console.info('getMissionInfo label is:' + JSON.stringify(data.label));
-    console.info('getMissionInfo iconPath is:' + JSON.stringify(data.iconPath));
-    console.info('getMissionInfo continuable is:' + JSON.stringify(data.continuable));
-});
+try {
+  missionManager.getMissionInfo("", 1, (error, data) => {
+    if (error.code) {
+        // 处理业务逻辑错误
+        console.log("getMissionInfo failed, error.code:" + JSON.stringify(error.code) +
+          "error.message:" + JSON.stringify(error.message));
+        return;
+    }
+
+    console.log('getMissionInfo missionId is:' + JSON.stringify(data.missionId));
+    console.log('getMissionInfo runningState is:' + JSON.stringify(data.runningState));
+    console.log('getMissionInfo lockedState is:' + JSON.stringify(data.lockedState));
+    console.log('getMissionInfo timestamp is:' + JSON.stringify(data.timestamp));
+    console.log('getMissionInfo want is:' + JSON.stringify(data.want));
+    console.log('getMissionInfo label is:' + JSON.stringify(data.label));
+    console.log('getMissionInfo iconPath is:' + JSON.stringify(data.iconPath));
+    console.log('getMissionInfo continuable is:' + JSON.stringify(data.continuable));
+    });
+} catch (paramError) {
+    console.log("error: " + paramError.code + ", " + paramError.message);
+}
 ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionListener.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionListener.md
index 6dbc6f9e7adf7335f834a3c75637869a9733ab0d..6cf445cbe310532951892f1785a3d5ee5cc7e426 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionListener.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionListener.md
@@ -1,6 +1,6 @@
 # MissionListener
 
-定义系统任务状态监听，可以通过[registerMissionListener](js-apis-application-missionManager.md#missionmanagerregistermissionlistener)注册。
+定义系统任务状态监听，可以通过[on](js-apis-app-ability-missionManager.md#missionmanageron)注册。
 
 **系统能力**：以下各项对应的系统能力均为SystemCapability.Ability.AbilityRuntime.Mission
 
@@ -16,7 +16,7 @@
 
 **示例：**
 ```ts
-import missionManager from '@ohos.application.missionManager'
+import missionManager from '@ohos.app.ability.missionManager'
 
 let listener = {
     onMissionCreated: function (mission) {
@@ -38,5 +38,10 @@ let listener = {
         console.log("onMissionClosed mission: " + JSON.stringify(mission));
     }
 };
-let listenerid = missionManager.registerMissionListener(listener);
+
+try {
+    let listenerId = missionManager.on("mission", listener);
+} catch (paramError) {
+    console.log("error: " + paramError.code + ", " + paramError.message);
+}
 ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionSnapshot.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionSnapshot.md
index 6cfb665902e90388e9043432406e64996bfe9daf..2310755f6bc2fd5ac0720e75060152ce6b050588 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionSnapshot.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-missionSnapshot.md
@@ -11,7 +11,7 @@
 
 | 名称 | 类型 | 可读 | 可写 | 说明 |
 | -------- | -------- | -------- | -------- | -------- |
-| ability | ElementName | 是 | 是 | 表示Ability任务元素名称。 |
+| ability | ElementName | 是 | 是 | 表示该任务的组件信息。 |
 | snapshot | [image.PixelMap](js-apis-image.md) | 是 | 是 | 表示任务快照。 |
 
 ## 使用说明
@@ -20,19 +20,33 @@
 
 **示例：**
 ```ts
-import ElementName from '@ohos.bundle';
-import image from '@ohos.multimedia.image';
-import missionManager from '@ohos.application.missionManager';
-
-missionManager.getMissionInfos("", 10, (error, missions) => {
-  console.log("getMissionInfos is called, error.code = " + error.code);
-  console.log("size = " + missions.length);
-  console.log("missions = " + JSON.stringify(missions));
-  var id = missions[0].missionId;
-
-  missionManager.getMissionSnapShot("", id, (error, snapshot) => {
-    console.log("getMissionSnapShot is called, error.code = " + error.code);
-    console.log("bundleName = " + snapshot.ability.bundleName);
-  })
-})
+  import ElementName from '@ohos.bundle';
+  import image from '@ohos.multimedia.image';
+  import missionManager from '@ohos.app.ability.missionManager';
+
+  try {
+    missionManager.getMissionInfos("", 10, (error, missions) => {
+      if (error.code) {
+          console.log("getMissionInfos failed, error.code:" + JSON.stringify(error.code) +
+            "error.message:" + JSON.stringify(error.message));
+          return;
+      }
+      console.log("size = " + missions.length);
+      console.log("missions = " + JSON.stringify(missions));
+      var id = missions[0].missionId;
+
+      missionManager.getMissionSnapShot("", id, (err, snapshot) => {
+        if (err.code) {
+          console.log("getMissionInfos failed, err.code:" + JSON.stringify(err.code) +
+            "err.message:" + JSON.stringify(err.message));
+          return;
+        }
+
+        // 执行正常业务
+        console.log("bundleName = " + snapshot.ability.bundleName);
+      })
+    })
+  } catch (paramError) {
+    console.log("error: " + paramError.code + ", " + paramError.message);
+  }
 ```
\ No newline at end of file