diff --git a/core/tensorrt_engine.py b/core/tensorrt_engine.py
index 677f5e8..15a3663 100644
--- a/core/tensorrt_engine.py
+++ b/core/tensorrt_engine.py
@@ -331,19 +331,18 @@ class TensorRTEngine:
             return {"total_mb": 0, "used_mb": 0, "free_mb": 0}
     
     def _release_resources(self):
-        """释放资源"""
+        """释放资源（Python TensorRT 由 GC 管理，无需 destroy）"""
         if self._stream:
             try:
                 self._stream.synchronize()
             except Exception:
                 pass
+            self._stream = None
         
         if self._context:
-            self._context.destroy()
             self._context = None
         
         if self._engine:
-            self._engine.destroy()
             self._engine = None
         
         self._memory_pool.clear()