diff --git a/arkui/ace_engine/native/native_node.h b/arkui/ace_engine/native/native_node.h
index 09ddb997cc90562322f436dd277a743b602a1d6a..f9a1f762a5a25a9e6b09d8839033fe7d538ca118 100644
--- a/arkui/ace_engine/native/native_node.h
+++ b/arkui/ace_engine/native/native_node.h
@@ -4408,6 +4408,25 @@ typedef enum {
  */
 typedef struct ArkUI_NodeCustomEvent ArkUI_NodeCustomEvent;
 
+/**
+ * @brief Defines the node content event type.
+ *
+ * @since 12
+ */
+typedef enum {
+    /** Defines the mount event. */
+    NODE_CONTENT_EVENT_ON_ATTACH_TO_WINDOW = 0,
+    /** Defines the unmount event. */
+    NODE_CONTENT_EVENT_ON_DETACH_FROM_WINDOW = 1,
+} ArkUI_NodeContentEventType;
+
+/**
+ * @brief Defines the general structure of a node content event.
+ *
+ * @since 12
+ */
+typedef struct ArkUI_NodeContentEvent ArkUI_NodeContentEvent;
+
 /**
  * @brief Defines the component adapter, which is used for lazy loading of elements of scrollable components.
  *
@@ -5135,6 +5154,67 @@ ArkUI_NodeHandle OH_ArkUI_NodeCustomEvent_GetNodeHandle(ArkUI_NodeCustomEvent* e
 */
 ArkUI_NodeCustomEventType OH_ArkUI_NodeCustomEvent_GetEventType(ArkUI_NodeCustomEvent* event);
 
+/**
+ * @brief Obtains the type through a node content event.
+ *
+ * @param event Indicates the pointer to the node content.
+ * @return Returns the type of the node content event.
+ * @since 12
+ */
+ArkUI_NodeContentEventType OH_ArkUI_NodeContentEvent_GetEventType(ArkUI_NodeContentEvent* event);
+
+/**
+ * @brief Adds a component to a node content.
+ *
+ * @param handle Indicates the pointer to the node content instance.
+ * @param node Indicates the pointer to the node.
+ * @return Returns 0 if success.
+ *         Returns 401 if a parameter exception occurs.
+ * @since 12
+ */
+int32_t OH_ArkUI_NodeContent_AddNode(ArkUI_NodeContentHandle handle, ArkUI_NodeHandle node);
+
+/**
+ * @brief Removes a component from a node content.
+ *
+ * @param handle Indicates the pointer to the node content.
+ * @param node Indicates the pointer to the node.
+ * @return Returns 0 if success.
+ *         Returns 401 if a parameter exception occurs.
+ * @since 12
+ */
+int32_t OH_ArkUI_NodeContent_RemoveNode(ArkUI_NodeContentHandle handle, ArkUI_NodeHandle node);
+
+/**
+ * @brief Inserts a component to a node content based on position.
+ *
+ * @param handle Indicates the pointer to the node content.
+ * @param node Indicates the pointer to the node.
+ * @param position Indicates the position to the node.
+ * @return Returns 0 if success.
+ *         Returns 401 if a parameter exception occurs.
+ * @since 12
+ */
+int32_t OH_ArkUI_NodeContent_InsertNode(ArkUI_NodeContentHandle handle, ArkUI_NodeHandle node, int32_t position);
+
+/**
+ * @brief Defines the node content event callback function.
+ *
+ * @since 12
+ */
+typedef void (*ArkUI_NodeContentCallback)(ArkUI_NodeContentEvent* event);
+
+/**
+ * @brief Registers a callback function to a node content.
+ *
+ * @param handle Indicates the pointer to the node content.
+ * @param callback Indicates the callback function.
+ * @return Returns 0 if success.
+ *         Returns 401 if a parameter exception occurs.
+ * @since 12
+ */
+int32_t OH_ArkUI_NodeContent_RegisterCallback(ArkUI_NodeContentHandle handle, ArkUI_NodeContentCallback callback);
+
 #ifdef __cplusplus
 };
 #endif
diff --git a/arkui/ace_engine/native/native_node_napi.h b/arkui/ace_engine/native/native_node_napi.h
index bba0121e8356c5bd8fd12876e07ea4a33f07d944..505d14c36e5e77364be1d4ca5f4baef343d649fe 100644
--- a/arkui/ace_engine/native/native_node_napi.h
+++ b/arkui/ace_engine/native/native_node_napi.h
@@ -69,6 +69,19 @@ int32_t OH_ArkUI_GetNodeHandleFromNapiValue(napi_env env, napi_value frameNode,
   */
 int32_t OH_ArkUI_GetContextFromNapiValue(napi_env env, napi_value value, ArkUI_ContextHandle* context);
 
+/**
+  * @brief Obtains a <b>NodeContent</b> object on the ArkTS side and maps it to an <b>ArkUI_NodeContentHandle</b> object on the
+  * native side.
+  *
+  * @param env ndicates the NAPI environment pointer.
+  * @param value Indicates the <b>NodeContent</b> object created on the ArkTS side.
+  * @param content Indicates the pointer to the <b>ArkUI_NodeContentHandle</b> object.
+  * @return Returns 0 if success.
+  * Returns 401 if a parameter exception occurs.
+  * @since 12
+  */
+int32_t OH_ArkUI_GetNodeContentFromNapiValue(napi_env env, napi_value value, ArkUI_NodeContentHandle* content);
+
 #ifdef __cplusplus
 };
 #endif
diff --git a/arkui/ace_engine/native/native_type.h b/arkui/ace_engine/native/native_type.h
index 8e290d69f09819eec6c372f1281bc31eda460161..98a70fc5c0616b32ca2900d06f1f75fbac590b25 100644
--- a/arkui/ace_engine/native/native_type.h
+++ b/arkui/ace_engine/native/native_type.h
@@ -105,6 +105,13 @@ struct ArkUI_Context;
   */
 typedef struct ArkUI_Context* ArkUI_ContextHandle;
 
+/**
+  * @brief Defines the pointer type of the ArkUI native node content object.
+  *
+  * @since 12
+  */
+typedef struct ArkUI_NodeContent* ArkUI_NodeContentHandle;
+
 /**
  * @brief Defines the event callback type.
  *