diff --git a/api/@ohos.request.d.ts b/api/@ohos.request.d.ts
index 765fb4a1efd14d35e050b1d8625ac883640f7b2c..ee238f8c9dbb4e759a7851261ece804d160fd78b 100644
--- a/api/@ohos.request.d.ts
+++ b/api/@ohos.request.d.ts
@@ -2807,6 +2807,39 @@ declare namespace request {
       text?: string;
     }
 
+    /**
+     * Options of the custom task timeout.
+     *
+     * @typedef Timeout
+     * @syscap SystemCapability.Request.FileTransferAgent
+     * @since 20
+     */
+    interface Timeout {
+      /**
+       * The connection timeout of the task, in seconds.
+       * Connection timeout is the maximum time required for a client and a server to establish a connection.
+       * If this value is not specified, use default value instead. The default value is 60 seconds.
+       * The minimum value allowed is 1 second.
+       *
+       * @type { ?number }
+       * @syscap SystemCapability.Request.FileTransferAgent
+       * @since 20
+       */
+      connectionTimeout?: number;
+      /**
+       * Total timeout of the task, in seconds.
+       * Total timeout includes the time to establish a connection, send a request and receive a response.
+       * If this value is not specified, use default value instead. The default value is 604,800 seconds(1 week).
+       * The minimum value allowed is 1 second.
+       * The maximum value allowed is 604,800 seconds(1 week).
+       *
+       * @type { ?number }
+       * @syscap SystemCapability.Request.FileTransferAgent
+       * @since 20
+       */
+      totalTimeout?: number;
+    }
+
     /**
      * The configurations for a task.
      * Using a flexible configuration for clear upload and download functions.
@@ -3370,6 +3403,14 @@ declare namespace request {
        * @since 15
        */
       notification?: Notification;
+      /**
+       * Customizes the timeout of the task.
+       *
+       * @type { ?Timeout }
+       * @syscap SystemCapability.Request.FileTransferAgent
+       * @since 20
+       */
+      timeout?: Timeout;
     }
 
     /**