diff --git a/src/services/verification_service.py b/src/services/verification_service.py
index d597fa7..d3afdfb 100644
--- a/src/services/verification_service.py
+++ b/src/services/verification_service.py
@@ -123,7 +123,21 @@ class GeometryVerificationService:
                 cwd=str(stp_dir)  # 在 STP 文件所在目录运行
             )
             
-            stdout, stderr = await process.communicate()
+            # 增加超时时间到 300 秒（5分钟）
+            try:
+                stdout, stderr = await asyncio.wait_for(
+                    process.communicate(),
+                    timeout=300.0
+                )
+            except asyncio.TimeoutError:
+                logger.error("验证脚本执行超时（300秒）")
+                process.kill()
+                await process.wait()
+                return {
+                    "status": "error",
+                    "error": "验证脚本执行超时（300秒）",
+                    "timestamp": datetime.now().isoformat()
+                }
             
             stdout_text = stdout.decode('utf-8') if stdout else ''
             stderr_text = stderr.decode('utf-8') if stderr else ''