diff --git a/api/@internal/component/ets/list.d.ts b/api/@internal/component/ets/list.d.ts
index 640cfb35d4ec09fab801d601b980cc956a8afb0e..8079b2f95fc78801172b8f35750ee9f5497bbbb7 100644
--- a/api/@internal/component/ets/list.d.ts
+++ b/api/@internal/component/ets/list.d.ts
@@ -580,6 +580,36 @@ declare enum ScrollSnapAlign {
   END = 3,
 }
 
+/**
+ * Declare the speed scroll snap animation.
+ *
+ * @enum { number }
+ * @syscap SystemCapability.ArkUI.ArkUI.Full
+ * @crossplatform
+ * @atomicservice
+ * @since arkts 22
+ */
+declare enum ScrollSnapAnimationSpeed {
+  /**
+   * The speed of scroll snap animation is normal.
+   *
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 22
+   */
+  NORMAL = 0,
+
+  /**
+   * The speed of scroll snap animation slow.
+   *
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 22
+   */
+  SLOW = 1,
+}
 /**
  * Defines the chain animation options.
  *
@@ -2045,6 +2075,19 @@ declare class ListAttribute extends ScrollableCommonMethod<ListAttribute> {
    */
   scrollSnapAlign(value: ScrollSnapAlign): ListAttribute;
 
+  /**
+   * Sets the speed of scroll snap animation.
+   * 
+   * @param { ScrollSnapAnimationSpeed } speed - Speed of scroll snap animation.
+   *     <br>Default value: <em>ScrollSnapAnimationSpeed.NORMAL</em>
+   * @returns { ListAttribute } the attribute of the list.
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 22
+   */
+  scrollSnapAnimationSpeed(speed: ScrollSnapAnimationSpeed): ListAttribute;
+
   /**
    * Called to setting the nested scroll options.
    *