diff --git a/api/@ohos.userIAM.userAuth.d.ts b/api/@ohos.userIAM.userAuth.d.ts
index a2415b366f8d4deaff9ce50b7790027535446cf8..b1e841872153906ce4010e7412c735944170bbc0 100644
--- a/api/@ohos.userIAM.userAuth.d.ts
+++ b/api/@ohos.userIAM.userAuth.d.ts
@@ -1571,37 +1571,7 @@ declare namespace userAuth {
    * @since arkts {'1.1':'12','1.2':'20'}
    * @arkts 1.1&1.2
    */
-  interface IAuthCallback {
-    /**
-     * The authentication result code is returned through the callback.
-     * If the authentication is passed, the authentication token is returned in extraInfo.
-     *
-     * @param { UserAuthResult } result - Authentication result information.
-     * @syscap SystemCapability.UserIAM.UserAuth.Core
-     * @since 10
-     */
-    /**
-     * Called to return the authentication result. If the authentication is successful,
-     * UserAuthResult contains the token information.
-     *
-     * @param { UserAuthResult } result - Authentication result information.
-     * @syscap SystemCapability.UserIAM.UserAuth.Core
-     * @atomicservice
-     * @since 12
-     */
-    onResult(result: UserAuthResult): void;
-    /**
-     * Called to return the authentication result. If the authentication is successful,
-     * UserAuthResult contains the token information.
-     *
-     * @type { function }
-     * @syscap SystemCapability.UserIAM.UserAuth.Core
-     * @atomicservice
-     * @since 20
-     * @arkts 1.2
-     */
-    onResult: (result: UserAuthResult) => void;
-  }
+  type IAuthCallback = (result: UserAuthResult) => void;
 
   /**
    * User authentication instance, used to initiate a complete authentication.
@@ -2180,28 +2150,7 @@ declare namespace userAuth {
    * @since arkts {'1.1':'10','1.2':'20'}
    * @arkts 1.1&1.2
    */
-  interface IAuthWidgetCallback {
-    /**
-     * Called to return the command sent from the user authentication framework to the user authentication widget.
-     *
-     * @param { string } cmdData - Command sent from the user authentication framework to the user
-     * authentication widget.
-     * @syscap SystemCapability.UserIAM.UserAuth.Core
-     * @systemapi Hide this for inner system use.
-     * @since 10
-     */
-    sendCommand(cmdData: string): void;
-    /**
-     * Called to return the command sent from the user authentication framework to the user authentication widget.
-     *
-     * @type { function }
-     * @syscap SystemCapability.UserIAM.UserAuth.Core
-     * @systemapi Hide this for inner system use.
-     * @since 20
-     * @arkts 1.2
-     */
-    sendCommand: (cmdData: string) => void;
-  }
+  type IAuthWidgetCallback = (cmdData: string) => void;
 
   /**
    * Obtains the reusable authentication result.