diff --git a/api/@internal/component/ets/list.d.ts b/api/@internal/component/ets/list.d.ts
index 640cfb35d4ec09fab801d601b980cc956a8afb0e..a27e4c02105925844982a00d569dbcdb02e0afc1 100644
--- a/api/@internal/component/ets/list.d.ts
+++ b/api/@internal/component/ets/list.d.ts
@@ -1928,6 +1928,23 @@ declare class ListAttribute extends ScrollableCommonMethod<ListAttribute> {
    */
   cachedCount(count: number, show: boolean): ListAttribute;
 
+  /**
+   * Sets the number of list items or list item groups to be cached (preloaded) and specifies whether to display the preloaded nodes.
+   *
+   * @param { number | CacheCountInfo } count - If the parameter type is number, it indicates number of list items to be preloaded.
+   *     If the parameter type is CacheCountInfo, it indicates the range of list items to be preloaded.
+   *     <br>Default value: number of nodes visible on the screen, with the maximum value of 16
+   *     <br>Value range for number type: [0, +∞)
+   * @param { boolean } show - Whether to display the preloaded list items.<br> Default value: <em>false</em>
+   * @returns { ListAttribute } the attribute of the list.
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @form
+   * @atomicservice
+   * @since 22
+   */
+  cachedCount(count: number | CacheCountInfo, show: boolean): ListAttribute;
+
   /**
    * Called when setting whether to enable chain linkage dynamic effect.
    *
diff --git a/api/@internal/component/ets/units.d.ts b/api/@internal/component/ets/units.d.ts
index 97d157a81483aa3aefc897f7b2ca1d73333fefa6..db12680b68e8635795b770cb4e4a9fc93cf58f35 100644
--- a/api/@internal/component/ets/units.d.ts
+++ b/api/@internal/component/ets/units.d.ts
@@ -3978,4 +3978,33 @@ declare interface ScrollBarMargin {
    * @since 20
    */
   end?: LengthMetrics;
+}
+
+/**
+ * Define cache count information.
+ *
+ * @interface CacheCountInfo
+ * @syscap SystemCapability.ArkUI.ArkUI.Full
+ * @atomicservice
+ * @since 22
+ */
+declare interface CacheCountInfo {
+  /**
+   * min cache count.
+   *
+   * @type { number }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @atomicservice
+   * @since 22
+   */
+  minCount: number;
+  /**
+   * max cache count.
+   *
+   * @type { number }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @atomicservice
+   * @since 22
+   */
+  maxCount: number;
 }
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