diff --git a/zh-cn/application-dev/reference/apis-core-file-kit/js-apis-file-backup-sys.md b/zh-cn/application-dev/reference/apis-core-file-kit/js-apis-file-backup-sys.md
index 3fd82c97aacbf3e081c31b055ef06d0855c02edb..d3969e6ec285d42b1980177fee7a3cdf23443b5c 100644
--- a/zh-cn/application-dev/reference/apis-core-file-kit/js-apis-file-backup-sys.md
+++ b/zh-cn/application-dev/reference/apis-core-file-kit/js-apis-file-backup-sys.md
@@ -1594,6 +1594,101 @@ cancel(bundleName: string): number
   this.sessionBackup = new backup.SessionBackup(generalCallbacks); // 创建备份流程
   ```
 
+### cleanBundleTempDir<sup>20+</sup>
+
+cleanBundleTempDir(bundleName: string): Promise&lt;boolean&gt;
+
+备份或者恢复任务结束后，提供给工具用于清理当前应用的临时目录(./backup目录下的backup和restore目录)的数据。
+
+**需要权限**：ohos.permission.BACKUP
+
+**系统能力**：SystemCapability.FileManagement.StorageService.Backup
+
+**参数：**
+
+| 参数名          | 类型     | 必填 | 说明                       |
+| --------------- | -------- | ---- | -------------------------- |
+| bundleName | string | 是   | 需要清理临时目录数据的应用名称。 |
+
+**返回值：**
+
+| 类型                | 说明                    |
+| ------------------- | ----------------------- |
+| Promise&lt;boolean&gt; | 返回清理结果。<br/>true：清理成功；<br/> false：清理失败；<br/> |
+
+**错误码：**
+
+以下错误码的详细介绍请参见[文件管理子系统错误码](errorcode-filemanagement.md)。
+
+| 错误码ID | 错误信息                                                                                       |
+| -------- | ---------------------------------------------------------------------------------------------- |
+| 201      | Permission verification failed, usually the result returned by VerifyAccessToken.              |
+| 202      | Permission verification failed, application which is not a system application uses system API. |
+| 401      | Parameter error. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verifcation faild|
+
+**示例：**
+
+  ```ts
+  import fs from '@ohos.file.fs';
+  import { BusinessError } from '@ohos.base';
+  import backup from '@ohos.file.backup';
+
+  let generalCallbacks: backup.GeneralCallbacks = {
+    onFileReady: (err: BusinessError, file: backup.File) => {
+      if (err) {
+        console.error('onFileReady failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onFileReady success');
+      fs.closeSync(file.fd);
+    },
+    onBundleBegin: (err: BusinessError<string|void>, bundleName: string) => {
+      if (err) {
+        console.error('onBundleBegin failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onBundleBegin success');
+    },
+    onBundleEnd: (err: BusinessError<string|void>, bundleName: string) => {
+      if (err) {
+        console.error('onBundleEnd failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      this.cleanBundleTempDir(bundleName);
+    },
+    onAllBundlesEnd: (err: BusinessError) => {
+      if (err) {
+        console.error('onAllBundlesEnd failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onAllBundlesEnd success');
+    },
+    onBackupServiceDied: () => {
+      console.info('service died');
+    },
+    onResultReport: (bundleName: string, result: string) => {
+      console.info('onResultReport success, bundleName: ' + bundleName +'result: ' + result);
+    },
+    onProcess: (bundleName: string, process: string) => {
+      console.info('onProcess success, bundleName: ' + bundleName +'process: ' + process);
+    }
+  };
+  let sessionBackup = new backup.SessionBackup(generalCallbacks); // 创建备份流程
+  async cleanBundleTempDir(bundleName: string) {
+    try {
+      let res = await sessionBackup.cleanBundleTempDir(bundleName);
+      if (res) {
+        console.info('cleanBundleTempDir success');
+      } else {
+        console.info('cleanBundleTempDir fail');
+      }
+    } catch (error) {
+      let err: BusinessError = error as BusinessError;
+      console.error('cleanBundleTempDir failed with err: ' + JSON.stringify(err));
+    }
+  }
+  ```
+
 ## SessionRestore
 
 恢复流程对象，用来支撑应用恢复的流程。在使用前，需要先创建SessionRestore实例。
@@ -2679,6 +2774,100 @@ cancel(bundleName: string): number
   };
   this.sessionRestore = new backup.SessionRestore(generalCallbacks); // 创建恢复流程
   ```
+### cleanBundleTempDir<sup>20+</sup>
+
+cleanBundleTempDir(bundleName: string): Promise&lt;boolean&gt;
+
+备份或者恢复任务结束后，提供给工具用于清理当前应用的临时目录(./backup目录下的backup和restore目录)的数据。
+
+**需要权限**：ohos.permission.BACKUP
+
+**系统能力**：SystemCapability.FileManagement.StorageService.Backup
+
+**参数：**
+
+| 参数名          | 类型     | 必填 | 说明                       |
+| --------------- | -------- | ---- | -------------------------- |
+| bundleName | string | 是   | 需要清理临时目录数据的应用名称。 |
+
+**返回值：**
+
+| 类型                | 说明                    |
+| ------------------- | ----------------------- |
+| Promise&lt;boolean&gt; | 返回清理结果。<br/>true：清理成功；<br/> false：清理失败；<br/> |
+
+**错误码：**
+
+以下错误码的详细介绍请参见[文件管理子系统错误码](errorcode-filemanagement.md)。
+
+| 错误码ID | 错误信息                                                                                       |
+| -------- | ---------------------------------------------------------------------------------------------- |
+| 201      | Permission verification failed, usually the result returned by VerifyAccessToken.              |
+| 202      | Permission verification failed, application which is not a system application uses system API. |
+| 401      | Parameter error. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verifcation faild|
+
+**示例：**
+
+  ```ts
+  import fs from '@ohos.file.fs';
+  import { BusinessError } from '@ohos.base';
+  import backup from '@ohos.file.backup';
+
+  let generalCallbacks: backup.GeneralCallbacks = {
+    onFileReady: (err: BusinessError, file: backup.File) => {
+      if (err) {
+        console.error('onFileReady failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onFileReady success');
+      fs.closeSync(file.fd);
+    },
+    onBundleBegin: (err: BusinessError<string|void>, bundleName: string) => {
+      if (err) {
+        console.error('onBundleBegin failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onBundleBegin success');
+    },
+    onBundleEnd: (err: BusinessError<string|void>, bundleName: string) => {
+      if (err) {
+        console.error('onBundleEnd failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      this.cleanBundleTempDir(bundleName);
+    },
+    onAllBundlesEnd: (err: BusinessError) => {
+      if (err) {
+        console.error('onAllBundlesEnd failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onAllBundlesEnd success');
+    },
+    onBackupServiceDied: () => {
+      console.info('service died');
+    },
+    onResultReport: (bundleName: string, result: string) => {
+      console.info('onResultReport success, bundleName: ' + bundleName +'result: ' + result);
+    },
+    onProcess: (bundleName: string, process: string) => {
+      console.info('onProcess success, bundleName: ' + bundleName +'process: ' + process);
+    }
+  };
+  let sessionRestore = new backup.SessionRestore(generalCallbacks); //  创建恢复流程
+  async cleanBundleTempDir(bundleName: string) {
+    try {
+      let res = await sessionRestore.cleanBundleTempDir(bundleName);
+      if (res) {
+        console.info('cleanBundleTempDir success');
+      } else {
+        console.info('cleanBundleTempDir fail');
+      }
+    } catch (error) {
+      let err: BusinessError = error as BusinessError;
+      console.error('cleanBundleTempDir failed with err: ' + JSON.stringify(err));
+    }
+  }
+  ```
 
 ## IncrementalBackupSession<sup>12+</sup>
 
@@ -3468,3 +3657,98 @@ cancel(bundleName: string): number
   };
   this.incrementalBackupSession = new backup.IncrementalBackupSession(generalCallbacks); // 创建增量备份流程
   ```
+
+### cleanBundleTempDir<sup>20+</sup>
+
+cleanBundleTempDir(bundleName: string): Promise&lt;boolean&gt;
+
+备份或者恢复任务结束后，提供给工具用于清理当前应用的临时目录(./backup目录下的backup和restore目录)的数据。
+
+**需要权限**：ohos.permission.BACKUP
+
+**系统能力**：SystemCapability.FileManagement.StorageService.Backup
+
+**参数：**
+
+| 参数名          | 类型     | 必填 | 说明                       |
+| --------------- | -------- | ---- | -------------------------- |
+| bundleName | string | 是   | 需要清理临时目录数据的应用名称。 |
+
+**返回值：**
+
+| 类型                | 说明                    |
+| ------------------- | ----------------------- |
+| Promise&lt;boolean&gt; | 返回清理结果。<br/>true：清理成功；<br/> false：清理失败；<br/> |
+
+**错误码：**
+
+以下错误码的详细介绍请参见[文件管理子系统错误码](errorcode-filemanagement.md)。
+
+| 错误码ID | 错误信息                                                                                       |
+| -------- | ---------------------------------------------------------------------------------------------- |
+| 201      | Permission verification failed, usually the result returned by VerifyAccessToken.              |
+| 202      | Permission verification failed, application which is not a system application uses system API. |
+| 401      | Parameter error. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verifcation faild|
+
+**示例：**
+
+  ```ts
+  import fs from '@ohos.file.fs';
+  import { BusinessError } from '@ohos.base';
+  import backup from '@ohos.file.backup';
+
+  let generalCallbacks: backup.GeneralCallbacks = {
+    onFileReady: (err: BusinessError, file: backup.File) => {
+      if (err) {
+        console.error('onFileReady failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onFileReady success');
+      fs.closeSync(file.fd);
+    },
+    onBundleBegin: (err: BusinessError<string|void>, bundleName: string) => {
+      if (err) {
+        console.error('onBundleBegin failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onBundleBegin success');
+    },
+    onBundleEnd: (err: BusinessError<string|void>, bundleName: string) => {
+      if (err) {
+        console.error('onBundleEnd failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      this.cleanBundleTempDir(bundleName);
+    },
+    onAllBundlesEnd: (err: BusinessError) => {
+      if (err) {
+        console.error('onAllBundlesEnd failed with err: ' + JSON.stringify(err));
+        return;
+      }
+      console.info('onAllBundlesEnd success');
+    },
+    onBackupServiceDied: () => {
+      console.info('service died');
+    },
+    onResultReport: (bundleName: string, result: string) => {
+      console.info('onResultReport success, bundleName: ' + bundleName +'result: ' + result);
+    },
+    onProcess: (bundleName: string, process: string) => {
+      console.info('onProcess success, bundleName: ' + bundleName +'process: ' + process);
+    }
+  };
+  let incrementalBackupSession = new backup.IncrementalBackupSession(generalCallbacks); //  创建增量备份流程
+  async cleanBundleTempDir(bundleName: string) {
+    try {
+      let res = await incrementalBackupSession.cleanBundleTempDir(bundleName);
+      if (res) {
+        console.info('cleanBundleTempDir success');
+      } else {
+        console.info('cleanBundleTempDir fail');
+      }
+    } catch (error) {
+      let err: BusinessError = error as BusinessError;
+      console.error('cleanBundleTempDir failed with err: ' + JSON.stringify(err));
+    }
+  }
+  ```