diff --git a/docs/changes.md b/docs/changes.md
index 498eddb2e..9c1ab26b5 100644
--- a/docs/changes.md
+++ b/docs/changes.md
@@ -1,4 +1,6 @@
 # 最新动态
+2022/02/18
+  * 增加函数fscript\_set\_global\_object。
 
 2022/02/16
   * 增加函数ui\_loader\_load\_widget\_from\_xml。
diff --git a/src/tkc/fscript.c b/src/tkc/fscript.c
index dd6e19b07..4c0be88b1 100644
--- a/src/tkc/fscript.c
+++ b/src/tkc/fscript.c
@@ -2736,12 +2736,23 @@ tk_object_t* fscript_get_global_object(void) {
   return s_global_obj;
 }
 
-ret_t fscript_global_init(void) {
-  tk_object_t* obj = object_default_create_ex(FALSE);
-  return_value_if_fail(obj != NULL, RET_BAD_PARAMS);
+ret_t fscript_set_global_object(tk_object_t* obj) {
+  TK_OBJECT_UNREF(s_global_obj);
 
-  s_global_obj = object_locker_create(obj);
-  TK_OBJECT_UNREF(obj);
+  TK_OBJECT_REF(obj);
+  s_global_obj = obj;
+
+  return RET_OK;
+}
+
+ret_t fscript_global_init(void) {
+  if (s_global_obj != NULL) {
+    tk_object_t* obj = object_default_create_ex(FALSE);
+    return_value_if_fail(obj != NULL, RET_BAD_PARAMS);
+
+    s_global_obj = object_locker_create(obj);
+    TK_OBJECT_UNREF(obj);
+  }
 
   return RET_OK;
 }
diff --git a/src/tkc/fscript.h b/src/tkc/fscript.h
index 89cc97864..df574c10c 100644
--- a/src/tkc/fscript.h
+++ b/src/tkc/fscript.h
@@ -330,6 +330,16 @@ ret_t fscript_eval(tk_object_t* obj, const char* script, value_t* result);
  */
 ret_t fscript_global_init(void);
 
+/**
+ * @method fscript_set_global_object
+ * 用于替换默认的全局对象。
+ * >仅限于在系统初始化时调用。
+ * @param {tk_object_t*} obj 全局对象。
+ *
+ * @return {ret_t} 返回RET_OK表示成功，否则表示失败。
+ */
+ret_t fscript_set_global_object(tk_object_t* obj);
+
 /**
  * @method fscript_register_func
  * 注册全局自定义函数。