diff --git a/api/@ohos.userIAM.userAuth.d.ts b/api/@ohos.userIAM.userAuth.d.ts
index 015bd1c5e39199c2e4509a975c6e6a0869ed30f6..62faf9ac63e9bfabf3e14016590f018d718f6017 100644
--- a/api/@ohos.userIAM.userAuth.d.ts
+++ b/api/@ohos.userIAM.userAuth.d.ts
@@ -2093,6 +2093,27 @@ declare namespace userAuth {
      */
     sendCommand(cmdData: string): void;
   }
+
+  /**
+   * Obtains the reusable authentication result.
+   *
+   * @permission ohos.permission.ACCESS_USER_AUTH_INTERNAL_PERMISSION
+   * @param { AuthParam } authParam - Auth parameter.
+   * @returns { Uint8Array } The reuse authentication token.
+   * @throws { BusinessError } 201 - Permission verification failed.
+   * @throws { BusinessError } 202 - Not system application.
+   * @throws { BusinessError } 401 - Incorrect parameters. Possible causes:
+   * <br>1. Mandatory parameters are left unspecified.
+   * <br>2. Incorrect parameter types.
+   * <br>3. Parameter verification failed.
+   * @throws { BusinessError } 12500002 - General operation error.
+   * @throws { BusinessError } 12500004 - The operation is time-out.
+   * @throws { BusinessError } 12500015 - AuthToken integrity check failed.
+   * @syscap SystemCapability.UserIAM.UserAuth.Core
+   * @systemapi Hide this for inner system use.
+   * @since 20
+   */
+  function queryReusableAuthResult(authParam: AuthParam): Uint8Array;
 }
 
 export default userAuth;