diff --git a/iotdb-client/client-py/iotdb/utils/IoTDBRpcDataSet.py b/iotdb-client/client-py/iotdb/utils/IoTDBRpcDataSet.py
index e9621bf81b963..2249e1c7c0d46 100644
--- a/iotdb-client/client-py/iotdb/utils/IoTDBRpcDataSet.py
+++ b/iotdb-client/client-py/iotdb/utils/IoTDBRpcDataSet.py
@@ -25,6 +25,7 @@
 from thrift.transport import TTransport
 from iotdb.thrift.rpc.IClientRPCService import TSFetchResultsReq, TSCloseOperationReq
 from iotdb.tsfile.utils.DateUtils import parse_int_to_date
+from iotdb.utils.IoTDBConnectionException import IoTDBConnectionException
 from iotdb.utils.IoTDBConstants import TSDataType
 
 logger = logging.getLogger("IoTDB")
@@ -417,6 +418,8 @@ def result_set_to_pandas(self):
         return df
 
     def fetch_results(self):
+        if self.__is_closed:
+            raise IoTDBConnectionException("This DataSet is already closed")
         self.__rows_index = 0
         request = TSFetchResultsReq(
             self.__session_id,