diff --git a/build_support/format_header.py b/build_support/format_header.py
new file mode 100644
index 000000000..46ca567d9
--- /dev/null
+++ b/build_support/format_header.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+# encoding: utf-8
+
+# ref: https://github.com/cmu-db/bustub/blob/master/script/formatting/formatter.py
+
+'''
+Usage: example
+    python format_header.py src/include/storage/page/b_plus_tree_page.h \
+        src/include/storage/page/b_plus_tree_leaf_page.h
+
+then you will get the header in b_plus_tree_page.h.     
+//===----------------------------------------------------------------------===//
+//
+//                         BusTub
+//
+// b_plus_tree_page.h
+//
+// Identification: src/include/storage/page/b_plus_tree_page.h
+//
+// Copyright (c) 2015-2023, Carnegie Mellon University Database Group
+//
+//===----------------------------------------------------------------------===//
+
+similar results insert in b_plus_tree_leaf_page.h.
+
+'''
+
+
+import os
+import datetime
+import sys
+BUSTUB_DIR = os.path.abspath(os.path.dirname(
+    __file__)).replace('/build_support', '')
+BUSTUB_SRC_DIR = os.path.join(BUSTUB_DIR, "src")
+BUSTUB_TESTS_DIR = os.path.join(BUSTUB_DIR, "test")
+
+# DEFAULT DIRS
+DEFAULT_DIRS = []
+DEFAULT_DIRS.append(BUSTUB_SRC_DIR)
+DEFAULT_DIRS.append(BUSTUB_TESTS_DIR)
+
+
+# header framework, dynamic information will be added inside function
+header_comment_line_1 = "//===----------------------------------------------------------------------===//\n"
+header_comment_line_1 += "//\n"
+header_comment_line_1 += "//                         BusTub\n"
+header_comment_line_2 = "//\n"
+header_comment_line_3 = "// "
+header_comment_line_4 = "//\n"
+header_comment_line_5 = "// Identification: "
+header_comment_line_6 = "//\n"
+header_comment_line_7 = "// Copyright (c) 2015-%d, Carnegie Mellon University Database Group\n" % datetime.datetime.now().year
+header_comment_line_8 = "//\n"
+header_comment_line_9 = "//===----------------------------------------------------------------------===//\n\n"
+
+header_comment_line_6 = header_comment_line_6 + \
+    header_comment_line_7+header_comment_line_8+header_comment_line_9
+
+header_comment_line_1 += header_comment_line_2
+
+
+def add_file_header(file: str):
+    """add header to this file."""
+    if not file.endswith('.h'):
+        return
+    file_path = os.path.join(BUSTUB_DIR, file)
+
+    if not os.path.isfile(file_path):
+        return
+
+    dir_flag = False
+    for deafult_dir in DEFAULT_DIRS:
+        if file_path.startswith(deafult_dir):
+            dir_flag = True
+            break
+    if not dir_flag:
+        return
+
+    file_name = os.path.basename(file)
+
+    header_comment_filename = header_comment_line_3+file_name+'\n'
+    header_comment_relpath = header_comment_line_5+file + '\n'
+    header_commnt = header_comment_line_1 + header_comment_filename + \
+        header_comment_line_4+header_comment_relpath+header_comment_line_6
+
+    with open(file_path, 'r+') as f:
+        # maybe use sed -i '' file
+        old = f.read()
+        f.seek(0)
+        f.write(header_commnt)
+        f.write(old)
+
+
+if __name__ == '__main__':
+    for file in sys.argv[1:]:
+        add_file_header(file)