diff --git a/tools/cal_weight.py b/tools/cal_weight.py
index 6398e32..9227fec 100644
--- a/tools/cal_weight.py
+++ b/tools/cal_weight.py
@@ -101,17 +101,17 @@ def down_obj_from_oss(workdir, pid, action):
                 
         
         if localfile.endswith('.obj'):
-            if isObjFile and os.path.exists(localfile):
+            if isObjFile:
                 print(f'目录{dirPath}已存在obj文件，跳过')
                 continue
         
         if localfile.endswith('.jpg'):  
-            if isJpgFile and os.path.exists(localfile):
+            if isJpgFile:
                 print(f'目录{dirPath}已存在jpg文件，跳过')
                 continue
         
         if localfile.endswith('.mtl'):
-            if isMtlFile and os.path.exists(localfile):
+            if isMtlFile:
                 print(f'目录{dirPath}已存在mtl文件，跳过')
                 continue