diff --git a/interfaces/kits/js/declaration/@ohos.update.d.ts b/interfaces/kits/js/declaration/@ohos.update.d.ts
index 3282d89bc4ae93e5a7e4977994a8bd6d4554d5f2..307991860416b8b2754ea14087ab57d5bc969036 100644
--- a/interfaces/kits/js/declaration/@ohos.update.d.ts
+++ b/interfaces/kits/js/declaration/@ohos.update.d.ts
@@ -373,12 +373,12 @@ declare namespace update {
         applyNewVersion(): Promise<number>;
 
         /**
-         * Reboot to clean cache.
+         * Reboot to clean userdata.
          *
          * @since 6
          */
-        rebootAndCleanCache(callback: AsyncCallback<number>): void;
-        rebootAndCleanCache(): Promise<number>;
+        rebootAndCleanUserData(callback: AsyncCallback<number>): void;
+        rebootAndCleanUserData(): Promise<number>;
 
         /**
          * verify update package.