diff --git a/be/src/runtime/sender_queue.cpp b/be/src/runtime/sender_queue.cpp
index 75f11222a8cad..26860bdbda957 100644
--- a/be/src/runtime/sender_queue.cpp
+++ b/be/src/runtime/sender_queue.cpp
@@ -567,6 +567,7 @@ void DataStreamRecvr::PipelineSenderQueue::clean_buffer_queues() {
                     item.closure->Run();
                 }
             }
+            chunk_queue.clear();
         }
     }
 }