diff --git a/arkui/ace_engine/native/ui_input_event.h b/arkui/ace_engine/native/ui_input_event.h
index 503f6f8ca2bdd6cb5396308a14de5fcd01558516..ecec3291f2ff7872f205673c4a1b5d53e7358d88 100644
--- a/arkui/ace_engine/native/ui_input_event.h
+++ b/arkui/ace_engine/native/ui_input_event.h
@@ -791,6 +791,19 @@ double OH_ArkUI_FocusAxisEvent_GetAxisValue(const ArkUI_UIInputEvent* event, int
  */
 int32_t OH_ArkUI_FocusAxisEvent_SetStopPropagation(const ArkUI_UIInputEvent* event, bool stopPropagation);
 
+/**
+ * @brief Obtains the state of the modifier keys in a UI input event.
+ *
+ * @param event Pointer to an <b>ArkUI_UIInputEvent</b> object.
+ * @param keys Pointer to a variable where the current combination of pressed modifier keys will be returned.
+ *        The application can use bitwise operations to determine the state of each modifier key.
+ * @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 16
+ */
+int32_t OH_ArkUI_UIInputEvent_GetModifierKeyStates(const ArkUI_UIInputEvent* event, uint64_t* keys);
+
 #ifdef __cplusplus
 };
 #endif