diff --git a/api/@internal/component/ets/swiper.d.ts b/api/@internal/component/ets/swiper.d.ts
index 69d57de31c99706030956052550343781c143b97..d5b6bf321f5c308a5dd851eb831b43829c366f52 100644
--- a/api/@internal/component/ets/swiper.d.ts
+++ b/api/@internal/component/ets/swiper.d.ts
@@ -2178,6 +2178,19 @@ declare class SwiperAttribute extends CommonMethod<SwiperAttribute> {
    */
   onUnselected(event: Callback<number>): SwiperAttribute;
 
+  /**
+   * Called when the scroll state of the swiper changed.
+   *
+   * @param { Callback<ScrollState> } event - callback to notify the change of the scroll state.
+   * @returns { SwiperAttribute }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @form
+   * @atomicservice
+   * @since 20
+   */
+  onScrollStateChanged(event: Callback<ScrollState>): SwiperAttribute
+
   /**
    * Called when the swiper animation start.
    *