diff --git a/api/@ohos.request.d.ts b/api/@ohos.request.d.ts
index 38ddc06e5f6f586caea9ec4d8814223feeac62c6..52b41040ce7330071b446113bdf7b1683ade077b 100644
--- a/api/@ohos.request.d.ts
+++ b/api/@ohos.request.d.ts
@@ -13,6 +13,7 @@
  * limitations under the License.
  */
 import { AsyncCallback } from './basic';
+import BaseContext from './application/BaseContext';
 
 /**
  * upload and download
@@ -110,6 +111,14 @@ declare namespace request {
    */
   const ERROR_UNKNOWN: number;
 
+  /**
+   * Indicates that the network is offline.
+   * @syscap SystemCapability.MiscServices.Download
+   * @since 9
+   * @permission ohos.permission.INTERNET
+   */
+  const ERROR_NETWORK_FAIL: number;
+
   /**
    * Indicates that the download is paused and waiting for a WLAN connection, because the file size exceeds the maximum allowed for a session using the cellular network.
    * @syscap SystemCapability.MiscServices.Download
@@ -190,9 +199,22 @@ declare namespace request {
    * @param callback Indicate the callback function to receive DownloadTask.
    * @permission ohos.permission.INTERNET
    * @return -
+   * @FAModelOnly
    */
   function download(config: DownloadConfig, callback: AsyncCallback<DownloadTask>): void;
 
+  /**
+   * Starts a download session.
+   * @syscap SystemCapability.MiscServices.Download
+   * @since 9
+   * @param BaseContext Indicates the application BaseContext.
+   * @param config download config
+   * @param callback Indicate the callback function to receive DownloadTask.
+   * @permission ohos.permission.INTERNET
+   * @return -
+   */
+  function download(context: BaseContext, config: DownloadConfig, callback: AsyncCallback<DownloadTask>): void;
+
   /**
    * Starts a download session.
    * @syscap SystemCapability.MiscServices.Download
@@ -200,9 +222,21 @@ declare namespace request {
    * @param config download config
    * @permission ohos.permission.INTERNET
    * @return -
+   * @FAModelOnly
    */
   function download(config: DownloadConfig): Promise<DownloadTask>;
 
+  /**
+   * Starts a download session.
+   * @syscap SystemCapability.MiscServices.Download
+   * @since 9
+   * @param BaseContext Indicates the application BaseContext.
+   * @param config download config
+   * @permission ohos.permission.INTERNET
+   * @return -
+   */
+  function download(context: BaseContext, config: DownloadConfig): Promise<DownloadTask>;
+
   /**
    * Starts a upload session.
    * @syscap SystemCapability.MiscServices.Upload
@@ -211,9 +245,22 @@ declare namespace request {
    * @param callback Indicate the callback function to receive UploadTask.
    * @permission ohos.permission.INTERNET
    * @return -
+   * @FAModelOnly
    */
   function upload(config: UploadConfig, callback: AsyncCallback<UploadTask>): void;
 
+  /**
+   * Starts a upload session.
+   * @syscap SystemCapability.MiscServices.Upload
+   * @since 9
+   * @param BaseContext Indicates the application BaseContext.
+   * @param config upload config
+   * @param callback Indicate the callback function to receive UploadTask.
+   * @permission ohos.permission.INTERNET
+   * @return -
+   */
+  function upload(context: BaseContext, config: UploadConfig, callback: AsyncCallback<UploadTask>): void;
+
   /**
    * Starts a upload session.
    * @syscap SystemCapability.MiscServices.Upload
@@ -221,9 +268,21 @@ declare namespace request {
    * @param config upload config
    * @permission ohos.permission.INTERNET
    * @return -
+   * @FAModelOnly
    */
   function upload(config: UploadConfig): Promise<UploadTask>;
 
+  /**
+   * Starts a upload session.
+   * @syscap SystemCapability.MiscServices.Upload
+   * @since 9
+   * @param BaseContext Indicates the application BaseContext.
+   * @param config upload config
+   * @permission ohos.permission.INTERNET
+   * @return -
+   */
+  function upload(context: BaseContext, config: UploadConfig): Promise<UploadTask>;
+
   /**
    * DownloadConfig data Structure
    *
@@ -289,6 +348,13 @@ declare namespace request {
      * @permission ohos.permission.INTERNET
      */
     title?: string;
+    /**
+     * Whether to display the background
+     *
+     * @since 9
+     * @permission ohos.permission.INTERNET
+     */
+    background?: boolean;
   }
 
   /**
@@ -312,7 +378,7 @@ declare namespace request {
      *
      * @since 7
      * @permission ohos.permission.INTERNET
-     */	
+     */
     downloadedBytes: number;
     /**
      * the ID of a file to be downloaded.
@@ -662,6 +728,13 @@ declare namespace request {
      * @permission ohos.permission.INTERNET
      */
     data: Array<RequestData>;
+    /**
+     * Whether to display the background
+     *
+     * @since 9
+     * @permission ohos.permission.INTERNET
+     */
+    background?: boolean;
   }
 
   interface UploadTask {
@@ -733,8 +806,66 @@ declare namespace request {
      * @return -
      */
     remove(): Promise<boolean>;
+
+    /**
+     * Called when the current upload session fails.
+     * @syscap SystemCapability.MiscServices.Upload
+     * @since 9
+     * @param type Indicates the Upload session type, fail: Upload task has failed.
+     * @param callback The callback function for the Upload fail change event
+     *        err The error code for Upload task.
+     * @param The callback parameter result list corresponds to the server response after uploading
+     * 		  each file in uploadconfig.files.Result is the server response body. If the server responds
+     * 	      only once after uploading multiple files, there is only one element in the result list.
+     * @permission ohos.permission.INTERNET
+     * @return -
+     */
+    on(type: 'fail', callback: (err: number, result?: Array<string>) => void): void;
+
+    /**
+     * Called when the current upload session fails.
+     * @syscap SystemCapability.MiscServices.Upload
+     * @since 9
+     * @param type Indicates the upload session type, fail: upload task has failed.
+     * @param callback The callback function for the Upload fail change event err The error code
+     *        for Upload task.
+     * @param The callback parameter result list corresponds to the server response after uploading
+     * 		  each file in uploadconfig.files.Result is the server response body. If the server responds
+     * 	      only once after uploading multiple files, there is only one element in the result list.
+     * @permission ohos.permission.INTERNET
+     * @return -
+     */
+    off(type: 'fail', callback?: (err: number, result?: Array<string>) => void): void;
+
+    /**
+     * Called when the current upload session complete
+     * @syscap SystemCapability.MiscServices.Upload
+     * @since 9
+     * @param type Indicates the upload session event type,complete: upload task completed,
+     * @param The callback parameter code/result list corresponds to the server response to
+	 * 	      each file uploaded in UploadConfig.files. Code is the server response code and result
+	 *        is the server response body. If the server responds only once after uploading
+	 *        multiple files, there is only one element in the code/result list.
+     * @permission ohos.permission.INTERNET
+     * @return -
+     */
+    on(type: 'complete', callback: (code: Array<number>, result?: Array<string>) => void): void;
+
+    /**
+     * Called when the current upload session complete
+     * @syscap SystemCapability.MiscServices.Upload
+     * @since 9
+     * @param type Indicates the upload session event type,complete: upload task completed,
+     * @param The callback parameter code/result list corresponds to the server response to
+	 * 	      each file uploaded in UploadConfig.files. Code is the server response code and result
+	 *        is the server response body. If the server responds only once after uploading
+	 *        multiple files, there is only one element in the code/result list.
+     * @permission ohos.permission.INTERNET
+     * @return -
+     */
+    off(type: 'complete', callback?: (code: Array<number>, result?: Array<string>) => void): void;
   }
 }
 
 export default request;
-	
+