diff --git a/src/awtk_global.c b/src/awtk_global.c
index 1d99cb7f6..424a15f02 100644
--- a/src/awtk_global.c
+++ b/src/awtk_global.c
@@ -35,6 +35,7 @@
 #include "base/window_manager.h"
 #include "base/widget_factory.h"
 #include "base/assets_manager.h"
+#include "fscript_ext/fscript_ext.h"
 
 #ifdef WITH_DATA_READER_WRITER
 #include "tkc/data_reader_factory.h"
@@ -153,6 +154,7 @@ ret_t tk_init_internal(void) {
 
   s_ui_thread_id = tk_thread_self();
   fscript_global_init();
+  fscript_ext_init();
 #ifdef WITH_DATA_READER_WRITER
   data_writer_factory_set(data_writer_factory_create());
   data_reader_factory_set(data_reader_factory_create());
diff --git a/src/fscript_ext/fscript_ext.c b/src/fscript_ext/fscript_ext.c
new file mode 100644
index 000000000..c3b127e38
--- /dev/null
+++ b/src/fscript_ext/fscript_ext.c
@@ -0,0 +1,30 @@
+/**
+ * File:   fscript_ext.h
+ * Author: AWTK Develop Team
+ * Brief:  ext functions for fscript
+ *
+ * Copyright (c) 2020 - 2021  Guangzhou ZHIYUAN Electronics Co.,Ltd.
+ *
+ */
+
+/**
+ * History:
+ * ================================================================
+ * 2021-01-03 Li XianJing <lixianjing@zlg.cn> created
+ *
+ */
+
+#include "fscript_ext/fscript_math.h"
+
+#if defined(LINUX) || defined(WINDOWS) || defined(MACOS) || defined(ANDROID) || defined(IOS)
+#define FSCRIPT_WITH_MATH 1
+#endif/*PC*/
+
+ret_t fscript_ext_init(void) {
+#ifdef FSCRIPT_WITH_MATH
+  fscript_math_register();
+#endif/*FSCRIPT_WITH_MATH*/
+
+  return RET_OK;
+}
+
diff --git a/src/fscript_ext/fscript_ext.h b/src/fscript_ext/fscript_ext.h
new file mode 100644
index 000000000..d1d2b402e
--- /dev/null
+++ b/src/fscript_ext/fscript_ext.h
@@ -0,0 +1,35 @@
+/**
+ * File:   fscript_ext.h
+ * Author: AWTK Develop Team
+ * Brief:  ext functions for fscript
+ *
+ * Copyright (c) 2020 - 2021  Guangzhou ZHIYUAN Electronics Co.,Ltd.
+ *
+ */
+
+/**
+ * History:
+ * ================================================================
+ * 2021-01-03 Li XianJing <lixianjing@zlg.cn> created
+ *
+ */
+
+#ifndef TK_FSCRIPT_EXT_H
+#define TK_FSCRIPT_EXT_H
+
+#include "tkc/str.h"
+#include "tkc/object.h"
+
+BEGIN_C_DECLS
+
+/**
+ * @method fscript_ext_init
+ * 注册扩展函数。
+ *
+ * @return {ret_t} 返回RET_OK表示成功，否则表示失败。
+ */
+ret_t fscript_ext_init(void);
+
+END_C_DECLS
+
+#endif /*TK_FSCRIPT_EXT_H*/