diff --git a/arkui/ace_engine/native/libace.ndk.json b/arkui/ace_engine/native/libace.ndk.json
index c80fc0750649e90dbc180d82275ce63ba87c42dc..b9d1cdc1647cc9db61d004af63d80e67a2dcb246 100644
--- a/arkui/ace_engine/native/libace.ndk.json
+++ b/arkui/ace_engine/native/libace.ndk.json
@@ -3290,5 +3290,13 @@
     {
         "first_introduced": "18",
         "name": "OH_ArkUI_XComponent_IsInitialized"
+    },
+    {
+        "first_introduced": "18",
+        "name": "OH_ArkUI_PostAsyncUITask"
+    },
+    {
+        "first_introduced": "18",
+        "name": "OH_ArkUI_PostUITask"
     }
 ]
\ No newline at end of file
diff --git a/arkui/ace_engine/native/native_interface.h b/arkui/ace_engine/native/native_interface.h
index 64cae7e06ea74db39542281356b42f0bcb425b82..0b91544ff8d6bab9ccb26820dc7c3f80e8264b56 100644
--- a/arkui/ace_engine/native/native_interface.h
+++ b/arkui/ace_engine/native/native_interface.h
@@ -57,6 +57,11 @@ typedef enum {
     ARKUI_NATIVE_GESTURE,
     /** API related to animations. For details, see the struct definition in <arkui/native_animate.h>.*/
     ARKUI_NATIVE_ANIMATE,
+    /**
+     * API related to supported multi thread UI components.
+     * For details, see the struct definition in <arkui/native_node.h>.
+     */
+    ARKUI_MULTI_THREAD_NATIVE_NODE,
 } ArkUI_NativeAPIVariantKind;
 
 /**
diff --git a/arkui/ace_engine/native/native_node.h b/arkui/ace_engine/native/native_node.h
index 68e03458616775fbe8bbef56770b4b4334f26cdb..04bdc80e81d8b600a3a5efed63cd7ae5be432516 100644
--- a/arkui/ace_engine/native/native_node.h
+++ b/arkui/ace_engine/native/native_node.h
@@ -9219,6 +9219,34 @@ int32_t OH_ArkUI_GetNodeSnapshot(ArkUI_NodeHandle node, ArkUI_SnapshotOptions* s
  */
 int32_t OH_ArkUI_NodeUtils_GetPositionToParent(ArkUI_NodeHandle node, ArkUI_IntOffset* globalOffset);
 
+/**
+ * @brief Post UI task to background threads.
+ *
+ * @param context UIContext pointer of the page where the UI task located.
+ * @param asyncUITaskData Parameter of asyncUITask and onFinish.
+ * @param asyncUITask Function executed by a background thread.
+ * @param onFinish Function executed by UI thread after async UI task is executed.
+ * @return Returns the result code.
+ *         Returns {@link ARKUI_ERROR_CODE_NO_ERROR} if the operation is successful.
+ *         Returns {@link ARKUI_ERROR_CODE_PARAM_INVALID} if a parameter error occurs.
+ * @since 18
+ */
+int32_t OH_ArkUI_PostAsyncUITask(ArkUI_ContextHandle context, void* asyncUITaskData,
+    void (*asyncUITask)(void* asyncUITaskData), void (*onFinish)(void* asyncUITaskData));
+
+/**
+ * @brief Post UI task to UI thread.
+ *
+ * @param context UIContext pointer of the page where the UI task located.
+ * @param taskData Parameter of task.
+ * @param task Function executed by UI thread.
+ * @return Returns the result code.
+ *         Returns {@link ARKUI_ERROR_CODE_NO_ERROR} if the operation is successful.
+ *         Returns {@link ARKUI_ERROR_CODE_PARAM_INVALID} if a parameter error occurs.
+ * @since 18
+ */
+int32_t OH_ArkUI_PostUITask(ArkUI_ContextHandle context, void* taskData, void (*task)(void* taskData));
+
 #ifdef __cplusplus
 };
 #endif
diff --git a/arkui/ace_engine/native/native_type.h b/arkui/ace_engine/native/native_type.h
index 64676cb956567bca6b4a76e163dd7889c41599f8..956e3e581726409fee760e64989d8bebab619741 100644
--- a/arkui/ace_engine/native/native_type.h
+++ b/arkui/ace_engine/native/native_type.h
@@ -2173,6 +2173,11 @@ typedef enum {
      * @since 15
      */
     ARKUI_ERROR_CODE_NODE_NOT_ON_MAIN_TREE = 106203,
+    /**
+     * @error The node is running on invalid thread.
+     * @since 18
+     */
+    ARKUI_ERROR_CODE_NODE_ON_INVALID_THREAD = 106204,
     /**
      * @error The node requesting focus is not focusable.
      * @since 15