diff --git a/milvus_client.py b/milvus_client.py
index e8ac4a2..e34f514 100644
--- a/milvus_client.py
+++ b/milvus_client.py
@@ -43,3 +43,10 @@ class MilvusClient(PyOperator):
     @property
     def shared_type(self):
         return SharedType.Shareable    
+
+    def __del__(self):
+        if connections.has_connection(self._connect_name):
+            try:
+                connections.disconnect(self._connect_name)
+            except:
+                pass