diff --git a/core/general-client/src/pybind_general_model.cpp b/core/general-client/src/pybind_general_model.cpp
index 47bc6bd3308e5150ccaba29ccefc52ca6e177c64..c8a0e3e612dc68603829a99e9116a4b8ae6207e3 100644
--- a/core/general-client/src/pybind_general_model.cpp
+++ b/core/general-client/src/pybind_general_model.cpp
@@ -83,7 +83,8 @@ PYBIND11_MODULE(serving_client, m) {
                                  fetch_name,
                                  predict_res,
                                  pid);
-           })
+           },
+           py::call_guard<py::gil_scoped_release>())
       .def("batch_predict",
            [](PredictorClient &self,
               const std::vector<std::vector<std::vector<float>>>
@@ -102,7 +103,8 @@ PYBIND11_MODULE(serving_client, m) {
                                        fetch_name,
                                        predict_res_batch,
                                        pid);
-           });
+           },
+           py::call_guard<py::gil_scoped_release>());
 }
 
 }  // namespace general_model