diff --git a/core/tensorrt_engine.py b/core/tensorrt_engine.py
index 15a3663..37e832f 100644
--- a/core/tensorrt_engine.py
+++ b/core/tensorrt_engine.py
@@ -49,6 +49,7 @@ class TensorRTEngine:
         self._input_binding = None
         self._output_bindings = []
         self._stream = None
+        self._released = False
         
         self._logger = get_logger("tensorrt")
         self._lock = threading.Lock()
@@ -348,8 +349,12 @@ class TensorRTEngine:
         self._memory_pool.clear()
     
     def release(self):
-        """释放引擎资源"""
+        """释放引擎资源（幂等调用）"""
         with self._lock:
+            if self._released:
+                return
+            self._released = True
+            
             self._release_resources()
             self._logger.info("TensorRT引擎资源已释放")