diff --git a/ge/graph/load/model_manager/model_manager.cc b/ge/graph/load/model_manager/model_manager.cc
index 74d7fc1d..f276389a 100755
--- a/ge/graph/load/model_manager/model_manager.cc
+++ b/ge/graph/load/model_manager/model_manager.cc
@@ -337,18 +337,6 @@ Status ModelManager::LoadModelOnline(uint32_t &model_id, const shared_ptr<ge::Ge
     GE_IF_BOOL_EXEC(SUCCESS != (ret = davinci_model->Assign(ge_model)), GELOGW("assign model to modeldef failed.");
                     break;);
     GE_TIMESTAMP_END(Assign, "GraphLoader::ModelAssign");
-    /// In multi-threaded inference,  using the same session_id among multiple threads may cause some threads to fail.
-    /// These session_ids come from the same model, so the values of session_id are the same.
-    /// Update session_id for infer in load model to avoid the same session_id.
-    if (!ge_root_model->GetTrainFlag()) {
-      uint64_t new_session_id;
-      ret = GenSessionId(new_session_id);
-      GE_CHK_BOOL_TRUE_EXEC_WITH_LOG(ret != SUCCESS, return ret, "Generate session_id for infer failed.");
-      ret = davinci_model->UpdateSessionId(new_session_id);
-      GE_CHK_BOOL_TRUE_EXEC_WITH_LOG(ret != SUCCESS, return ret, "Update session_id for infer failed.");
-      ge_model->InsertSessionMap(model_id, new_session_id);
-      GELOGD("Update new session id: %lu.", new_session_id);
-    }
     GE_TIMESTAMP_START(Init);
     GE_IF_BOOL_EXEC(SUCCESS != (ret = davinci_model->Init()), GELOGW("DavinciInit failed."); break;);
     GE_TIMESTAMP_END(Init, "GraphLoader::ModelInit");