diff --git a/ge/graph/load/new_model_manager/davinci_model.cc b/ge/graph/load/new_model_manager/davinci_model.cc
index 6df06c1c..7427489b 100755
--- a/ge/graph/load/new_model_manager/davinci_model.cc
+++ b/ge/graph/load/new_model_manager/davinci_model.cc
@@ -969,7 +969,9 @@ Status DavinciModel::InitDataOp(const ComputeGraphPtr &graph, const NodePtr &nod
   }
 
   data_by_index[data_index] = op_desc;
-  data_op_list_.push_back(op_desc);
+  auto data_op = AttrUtils::CopyOpDesc(op_desc);
+  GE_CHECK_NOTNULL(data_op);
+  data_op_list_.push_back(data_op);
   if (known_node_) {
     return SUCCESS;
   }
@@ -1025,7 +1027,9 @@ Status DavinciModel::OptInputOutputInfo(const map<uint32_t, OpDescPtr> &data_by_
 
   data_op_list_.clear();
   for (auto &item : data_by_index) {
-    data_op_list_.emplace_back(item.second);
+    auto data_op = AttrUtils::CopyOpDesc(item.second);
+    GE_CHECK_NOTNULL(data_op);
+    data_op_list_.emplace_back(data_op);
     auto output_addrs = ModelUtils::GetOutputDataAddrs(runtime_param_, item.second);
     GELOGD("Data node: %s, output addr size: %zu", item.second->GetName().c_str(), output_addrs.size());
     input_addrs_list_.emplace_back(output_addrs);