diff --git a/zh-cn/native_sdk/ace/native_interface_xcomponent.h b/zh-cn/native_sdk/ace/native_interface_xcomponent.h
index 87c8e984ab8663245125126e2d7f826b14ca623e..a7fa101521fdecf4accbdc24dbce7fafd831d9bb 100644
--- a/zh-cn/native_sdk/ace/native_interface_xcomponent.h
+++ b/zh-cn/native_sdk/ace/native_interface_xcomponent.h
@@ -113,9 +113,17 @@ typedef enum {
 } OH_NativeXComponent_MouseEventButton;
 
 #define OH_NATIVE_XCOMPONENT_OBJ ("__NATIVE_XCOMPONENT_OBJ__")
+    /** ArkUI XComponent的id的最大长度 */
 const uint32_t OH_XCOMPONENT_ID_LEN_MAX = 128;
+    /** 触摸事件中可识别的触摸点个数最大值 */
 const uint32_t OH_MAX_TOUCH_POINTS_NUMBER = 10;
 
+/**
+ * @brief 触摸点。
+ *
+ * @since 8
+ * @version 1.0
+ */
 typedef struct {
     /** 手指的唯一标识符。 */
     int32_t id = 0;