diff --git a/find_headfile.py b/find_headfile.py
new file mode 100644
index 0000000..d94c272
--- /dev/null
+++ b/find_headfile.py
@@ -0,0 +1,65 @@
+import os
+import sys
+import shutil
+
+
+# 找出未调用的 .h 文件
+
+# 定义 .h 文件的目录
+_INC=[
+  "inc/hw/reg/riscv3/2/soc/macro",
+  "driver/src/hw3/inc"
+  ]
+
+# 定义调用目录
+_CALL=[
+  "driver/inc",
+  "driver/src/hal"
+]
+
+# 找到指定后缀的文件
+def find_type(path:str,fix:str):
+  dlist=os.listdir(path)
+  file_list=[]
+  for i in dlist:
+    ps=os.path.join(path, i)
+    if os.path.isdir(ps):
+      file_list+=find_type(ps,fix)
+      pass
+    else:
+      if(ps[-len(fix):]==fix):
+        file_list.append(ps)
+  return file_list
+
+
+# 如果文件中存在列表中任意字符串则返回true
+def check_list_in_file(file:str,str_list:list):
+  ret=[]
+  with open(file,mode='r',encoding='utf-8') as f:
+    lines=f.readlines()
+    for line in lines:
+      for item in str_list:
+        ps=os.path.split(item)[-1]
+        if(line.find(ps)>=0):
+          ret.append(item)
+  return ret
+
+
+
+if __name__ == "__main__":
+  head_list=[]
+  for item in _INC:
+    head_list+=find_type(item,".h")
+  call_list=[]
+  for item in _CALL:
+    call_list+=find_type(item,".h")
+    call_list+=find_type(item,".c")
+  find_list=[]
+  for item in call_list:
+    ret=check_list_in_file(item,head_list)
+    if(len(ret)>0):
+      print(f"{item} called {ret}")
+      find_list+=ret
+  for item in head_list:
+    if item not in find_list:
+      print(f"unused file:{item}")