diff --git a/arkui/ace_engine/native/libace.ndk.json b/arkui/ace_engine/native/libace.ndk.json
index 3c739a283d083bc3ec54e71cbce89094a70bce10..c80fb73134ea6566e647f3526f238cb3ec540fbd 100644
--- a/arkui/ace_engine/native/libace.ndk.json
+++ b/arkui/ace_engine/native/libace.ndk.json
@@ -4050,17 +4050,5 @@
     {
         "first_introduced": "20",
         "name": "OH_ArkUI_RenderNodeUtils_DisposeRenderNodeClipOption"
-    },
-    {
-        "first_introduced": "20",
-        "name": "OH_ArkUI_PostAsyncUITask"
-    },
-    {
-        "first_introduced": "20",
-        "name": "OH_ArkUI_PostUITask"
-    },
-    {
-        "first_introduced": "20",
-        "name": "OH_ArkUI_PostUITaskAndWait"
     }
 ]
\ 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 4c3405779511912c2b8b668c24e7ba5990028b62..64cae7e06ea74db39542281356b42f0bcb425b82 100644
--- a/arkui/ace_engine/native/native_interface.h
+++ b/arkui/ace_engine/native/native_interface.h
@@ -57,12 +57,6 @@ 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>.
-     * @since 20
-     */
-    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 5feb3bc7bb8c2d98ffab6e697be16cedb2a83ec7..07a9708d9ffbd61a1e64c015457a9a7c9f1eb42e 100644
--- a/arkui/ace_engine/native/native_node.h
+++ b/arkui/ace_engine/native/native_node.h
@@ -10000,46 +10000,6 @@ int32_t OH_ArkUI_NodeUtils_GetNodeUniqueId(ArkUI_NodeHandle node, int32_t* uniqu
 int32_t OH_ArkUI_SetForceDarkConfig(ArkUI_ContextHandle uiContext, bool forceDark, ArkUI_NodeType nodeType,
     uint32_t (*colorInvertFunc)(uint32_t color));
 
-/**
- * @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 context or asyncUITask is nullptr.
- * @since 20
- */
-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 context or task is nullptr.
- * @since 20
- */
-int32_t OH_ArkUI_PostUITask(ArkUI_ContextHandle context, void* taskData, void (*task)(void* taskData));
-
-/**
- * @brief Post UI task to UI thread and wait until UI task finished.
- *
- * @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 context or task is nullptr.
- * @since 20
- */
-int32_t OH_ArkUI_PostUITaskAndWait(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 3bfa0c36dc25d8298fcc4a207a499250e009a8f4..5898260f8d5c9c2ee6d016a75e0aa82997fa4707 100644
--- a/arkui/ace_engine/native/native_type.h
+++ b/arkui/ace_engine/native/native_type.h
@@ -2266,11 +2266,6 @@ typedef enum {
      * @since 15
      */
     ARKUI_ERROR_CODE_NODE_NOT_ON_MAIN_TREE = 106203,
-    /**
-     * @error The node is running on invalid thread.
-     * @since 20
-     */
-    ARKUI_ERROR_CODE_NODE_ON_INVALID_THREAD = 106204,
     /**
      * @error Force dark config is invalid.
      * @since 20