diff --git a/src/services/verification_service.py b/src/services/verification_service.py
index 8d92a95..02975b9 100644
--- a/src/services/verification_service.py
+++ b/src/services/verification_service.py
@@ -19,7 +19,12 @@ class GeometryVerificationService:
     """几何验证服务"""
     
     def __init__(self):
-        self.verification_script = Path(__file__).parent.parent / "scripts" / "verify_stp.py"
+        # 验证脚本在项目根目录的 scripts 文件夹下
+        # __file__ = /path/to/project/src/services/verification_service.py
+        # parent = /path/to/project/src/services
+        # parent.parent = /path/to/project/src
+        # parent.parent.parent = /path/to/project (正确)
+        self.verification_script = Path(__file__).parent.parent.parent / "scripts" / "verify_stp.py"
     
     async def verify_stp_file(self, stp_path: str) -> Dict[str, Any]:
         """