diff --git a/arkui/ace_engine/native/libace.ndk.json b/arkui/ace_engine/native/libace.ndk.json
index d75a5bc6bfed48956cc1aefd439b8bbd99e93420..b0acf00b2fde0ca0d01582b2e9259b84e90559fc 100644
--- a/arkui/ace_engine/native/libace.ndk.json
+++ b/arkui/ace_engine/native/libace.ndk.json
@@ -4070,5 +4070,49 @@
     {
         "first_introduced": "21",
         "name": "OH_ArkUI_NativeModule_UnregisterCommonEvent"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_Create"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_Copy"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_Dispose"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_SetTop"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_GetTop"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_SetLeft"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_GetLeft"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_SetBottom"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_GetBottom"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_SetRight"
+    },
+    {
+        "first_introduced": "21",
+        "name": "OH_ArkUI_PositionEdges_GetRight"
     }
 ]
\ No newline at end of file
diff --git a/arkui/ace_engine/native/native_node.h b/arkui/ace_engine/native/native_node.h
index 788f80454702a862b8e02b42a73ade278b7afe3e..04a4f7d089a58c7fb1c576001f0c8992a261b3fc 100644
--- a/arkui/ace_engine/native/native_node.h
+++ b/arkui/ace_engine/native/native_node.h
@@ -1999,6 +1999,53 @@ typedef enum {
      */
     NODE_ROTATE_ANGLE = 104,
 
+    /**
+     * @brief Defines the width attribute with param type LayoutPolicy, which can be set, reset, and obtained
+     * as required through APIs.
+     *
+     * Format of the {@link ArkUI_AttributeItem} parameter for setting the attribute:\n
+     * .value[0].i32: the LayoutPolicy that the width of the component follows.\n
+     * The parameter type is {@link ArkUI_LayoutPolicy}. \n
+     * \n
+     * Format of the return value {@link ArkUI_AttributeItem}:\n
+     * .value[0].i32: the LayoutPolicy that the width of the component follows.\n
+     * The parameter type is {@link ArkUI_LayoutPolicy}. \n
+     *
+     * @since 21
+     */
+    NODE_WIDTH_LAYOUTPOLICY = 105,
+
+    /**
+     * @brief Defines the height attribute with param type LayoutPolicy, which can be set, reset, and obtained
+     * as required through APIs.
+     *
+     * Format of the {@link ArkUI_AttributeItem} parameter for setting the attribute:\n
+     * .value[0].i32: the LayoutPolicy that the height of the component follows.\n
+     * The parameter type is {@link ArkUI_LayoutPolicy}. \n
+     * \n
+     * Format of the return value {@link ArkUI_AttributeItem}:\n
+     * .value[0].i32: the LayoutPolicy that the height of the component follows.\n
+     * The parameter type is {@link ArkUI_LayoutPolicy}. \n
+     *
+     * @since 21
+     */
+    NODE_HEIGHT_LAYOUTPOLICY = 106,
+
+    /**
+     * @brief Defines the position attribute in param type Edges, which specifies the position of the component
+     * by the distance relative to the parent container's four edges. This attribute can be set, reset, and obtained as
+     * required through APIs.
+     *
+     * Format of the {@link ArkUI_AttributeItem} parameter for setting the attribute:\n
+     * .object indicates struct of edges for position. The parameter type is {@link ArkUI_PositionEdges}. \n
+     * \n
+     * Format of the return value {@link ArkUI_AttributeItem}:\n
+     * .object indicates struct of edges for position. The parameter type is {@link ArkUI_PositionEdges}. \n
+     *
+     * @since 21
+     */
+    NODE_POSITION_EDGES = 107,
+
     /**
      * @brief Defines the text content attribute, which can be set, reset, and obtained as required through APIs.
      *
diff --git a/arkui/ace_engine/native/native_type.h b/arkui/ace_engine/native/native_type.h
index f7b72cc37d01d1e2fdf67c70598a42194058fb72..25626e7d1e55564fd2e95e73297879c25e942bcf 100644
--- a/arkui/ace_engine/native/native_type.h
+++ b/arkui/ace_engine/native/native_type.h
@@ -256,6 +256,13 @@ typedef struct AbilityBase_Want AbilityBase_Want;
  */
 typedef struct ArkUI_EmbeddedComponentOption ArkUI_EmbeddedComponentOption;
 
+/**
+ * @brief Define the Edges describing the position of a component by distances to the container's four edges.
+ *
+ * @since 21
+ */
+typedef struct ArkUI_PositionEdges ArkUI_PositionEdges;
+
 /**
  * @brief Defines the event callback type.
  *
@@ -2818,6 +2825,23 @@ typedef enum {
     ARKUI_CORNER_DIRECTION_BOTTOM_RIGHT,
 } ArkUI_CornerDirection;
 
+/**
+ * @brief Enumerates the LayoutPolicy.
+ *
+ * @since 21
+ */
+typedef enum {
+    /** The component fills its parent, which means its size is as large as its parent */
+    ARKUI_LAYOUTPOLICY_MATCHPARENT = 0,
+    /**
+     * The component fills its content, which means its size is as large as its children but it is constrained
+     * by its parent.
+     */
+    ARKUI_LAYOUTPOLICY_WRAPCONTENT,
+    /** The component fills its content which means its size is as large as its children. */
+    ARKUI_LAYOUTPOLICY_FIXATIDEALSIZE,
+} ArkUI_LayoutPolicy;
+
 /**
  * @brief Defines parameter used by the system font style callback event.
  *
@@ -5394,6 +5418,115 @@ void OH_ArkUI_EmbeddedComponentOption_SetOnError(
  */
 void OH_ArkUI_EmbeddedComponentOption_SetOnTerminated(
     ArkUI_EmbeddedComponentOption* option, void (*callback)(int32_t code, AbilityBase_Want* want));
+
+/**
+ * @brief Create an edge object for position attribute.
+ *
+ * @return A pointer to the edge object.
+ * @since 21
+ */
+ArkUI_PositionEdges* OH_ArkUI_PositionEdges_Create();
+
+/**
+ * @brief Creates a deep copy of an edge object for position attribute.
+ *
+ * @param edges A pointer to an edge object.
+ * @return A pointer to the new edge object.
+ * @since 21
+ */
+ArkUI_PositionEdges* OH_ArkUI_PositionEdges_Copy(const ArkUI_PositionEdges* edges);
+
+/**
+ * @brief Dispose an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object to be disposed.
+ * @since 21
+ */
+void OH_ArkUI_PositionEdges_Dispose(ArkUI_PositionEdges* edges);
+
+/**
+ * @brief Sets the top edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of top edge to the corresponding edge of parent container, in vp.
+ * @since 21
+ */
+void OH_ArkUI_PositionEdges_SetTop(ArkUI_PositionEdges* edges, float value);
+
+/**
+ * @brief Gets the top edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of top edge to the corresponding edge of parent container, in vp.
+ * @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 the parameter is invalid.
+ * @since 21
+ */
+int32_t OH_ArkUI_PositionEdges_GetTop(ArkUI_PositionEdges* edges, float* value);
+
+/**
+ * @brief Sets the left edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of left edge to the corresponding edge of parent container, in vp.
+ * @since 21
+ */
+void OH_ArkUI_PositionEdges_SetLeft(ArkUI_PositionEdges* edges, float value);
+
+/**
+ * @brief Gets the left edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of left edge to the corresponding edge of parent container, in vp.
+ * @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 the parameter is invalid.
+ * @since 21
+ */
+int32_t OH_ArkUI_PositionEdges_GetLeft(ArkUI_PositionEdges* edges, float* value);
+
+/**
+ * @brief Sets the bottom edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of bottom edge to the corresponding edge of parent container, in vp.
+ * @since 21
+ */
+void OH_ArkUI_PositionEdges_SetBottom(ArkUI_PositionEdges* edges, float value);
+
+/**
+ * @brief Gets the bottom edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of bottom edge to the corresponding edge of parent container, in vp.
+ * @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 the parameter is invalid.
+ * @since 21
+ */
+int32_t OH_ArkUI_PositionEdges_GetBottom(ArkUI_PositionEdges* edges, float* value);
+
+/**
+ * @brief Sets the right edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of right edge to the corresponding edge of parent container, in vp.
+ * @since 21
+ */
+void OH_ArkUI_PositionEdges_SetRight(ArkUI_PositionEdges* edges, float value);
+
+/**
+ * @brief Gets the right edge of an edge object for position attribute.
+ *
+ * @param edges Pointer to the edge object.
+ * @param value The distance of right edge to the corresponding edge of parent container, in vp.
+ * @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 the parameter is invalid.
+ * @since 21
+ */
+int32_t OH_ArkUI_PositionEdges_GetRight(ArkUI_PositionEdges* edges, float* value);
 #ifdef __cplusplus
 };
 #endif