diff --git a/tools/ClangFormater/clang-formater.py b/tools/ClangFormater/clang-formater.py
index f7e1533661..a9a8deb64f 100644
--- a/tools/ClangFormater/clang-formater.py
+++ b/tools/ClangFormater/clang-formater.py
@@ -3,18 +3,26 @@ import os
 
 def ArgParser():
     parser = ArgumentParser()
-    parser.add_argument("--input", help="input dir", metavar="I", dest="src", required=True)
+    parser.add_argument("--input", help="input dir", metavar="I", dest="src")
+    parser.add_argument("--clang-format", help="the path of clang-format.exe", metavar="PATH", dest="exe", default="clang-format")
     return parser
 
 args = ArgParser().parse_args()
 
+clang_format_exe = args.exe
 input_dir = args.src
 
+os.system(f"{clang_format_exe} --version");
+
+if not input_dir:
+    print("No input dir, exit.")
+    exit()
+
 for root, dirs, files in os.walk(input_dir):
     for f in files:
         file = os.path.join(root, f)
         if os.path.splitext(file)[-1] in [".c", ".h", ".cpp", ".hpp"]:
             print(file)
-            os.system(f"clang-format -i -style=file \"{file}\"");
+            os.system(f"{clang_format_exe} -i -style=file \"{file}\"");
 
 # example: python tools\ClangFormater\clang-formater.py --input=src\MeoAssistant