diff --git a/ge/graph/load/new_model_manager/data_dumper.cc b/ge/graph/load/new_model_manager/data_dumper.cc
index b33a062d..f7f23dc1 100644
--- a/ge/graph/load/new_model_manager/data_dumper.cc
+++ b/ge/graph/load/new_model_manager/data_dumper.cc
@@ -830,6 +830,13 @@ Status DataDumper::UnloadDumpInfo() {
   return SUCCESS;
 }
 
+void DataDumper::DumpShrink() {
+  compute_graph_.reset();
+  input_map_.clear();
+  ref_info_.clear();
+  op_list_.clear();
+}
+
 void DataDumper::PrintCheckLog(string &dump_list_key) {
   std::set<std::string> model_list = dump_properties_.GetAllDumpModel();
   if (model_list.empty()) {
diff --git a/ge/graph/load/new_model_manager/data_dumper.h b/ge/graph/load/new_model_manager/data_dumper.h
index 46ead310..8e612688 100755
--- a/ge/graph/load/new_model_manager/data_dumper.h
+++ b/ge/graph/load/new_model_manager/data_dumper.h
@@ -83,6 +83,8 @@ class DataDumper {
 
   Status UnloadDumpInfo();
 
+  void DumpShrink();
+
   void SetDumpProperties(const DumpProperties &dump_properties) { dump_properties_ = dump_properties; }
   const DumpProperties &GetDumpProperties() const { return dump_properties_; }
   bool GetOpDescInfo(uint32_t stream_id, uint32_t task_id, OpDescInfo &op_desc_info) const;
@@ -112,18 +114,18 @@ class DataDumper {
   struct InnerInputMapping;
 
   std::vector<OpDescInfo> op_desc_info_;
-  std::vector<InnerDumpInfo> op_list_;
+  std::vector<InnerDumpInfo> op_list_;  // release after DavinciModel::Init
   uint32_t end_graph_task_id_ = 0;
   uint32_t end_graph_stream_id_ = 0;
   bool is_end_graph_ = false;
-  std::multimap<std::string, InnerInputMapping> input_map_;
+  std::multimap<std::string, InnerInputMapping> input_map_;  // release after DavinciModel::Init
   bool load_flag_;
   uint32_t device_id_;
   uintptr_t global_step_;
   uintptr_t loop_per_iter_;
   uintptr_t loop_cond_;
-  ComputeGraphPtr compute_graph_;
-  std::map<OpDescPtr, void *> ref_info_;
+  ComputeGraphPtr compute_graph_;  // release after DavinciModel::Init
+  std::map<OpDescPtr, void *> ref_info_;  // release after DavinciModel::Init
   void *l1_fusion_addr_ = nullptr;
 
 
diff --git a/ge/graph/load/new_model_manager/davinci_model.cc b/ge/graph/load/new_model_manager/davinci_model.cc
index d834a737..7ec7fedc 100755
--- a/ge/graph/load/new_model_manager/davinci_model.cc
+++ b/ge/graph/load/new_model_manager/davinci_model.cc
@@ -150,14 +150,7 @@ DavinciModel::~DavinciModel() {
       GELOGW("UnloadDumpInfo failed, ret: %u.", ret);
     }
 
-    for (const auto &op_and_addr : saved_task_addrs_) {
-      auto addr = op_and_addr.second;
-      if (addr != nullptr) {
-        GE_CHK_RT(rtFree(addr));
-      }
-      addr = nullptr;
-    }
-    saved_task_addrs_.clear();
+    ClearTaskAddrs();
 
     GE_CHK_STATUS(ModelRunStop());
 
@@ -222,6 +215,17 @@ DavinciModel::~DavinciModel() {
   }
 }
 
+void DavinciModel::ClearTaskAddrs() {
+  for (const auto &op_and_addr : saved_task_addrs_) {
+    auto addr = op_and_addr.second;
+    if (addr != nullptr) {
+      GE_CHK_RT(rtFree(addr));
+    }
+    addr = nullptr;
+  }
+  saved_task_addrs_.clear();
+}
+
 void DavinciModel::UnbindHcomStream() {
   if (!all_hccl_stream_list_.empty()) {
     for (size_t i = 0; i < all_hccl_stream_list_.size(); i++) {
@@ -264,7 +268,10 @@ Status DavinciModel::Assign(const GeModelPtr &ge_model) {
 ///
 void DavinciModel::Shrink() {
   skt_info_ = {0, 0, 0, 0, nullptr, nullptr, {}, {}, {}, {}, {}, RT_KERNEL_DEFAULT, -1, 0, nullptr};
+  DumperShrink();
   ge_model_.reset();  // delete object.
+  op_list_.clear();
+  ClearTaskAddrs();
 }
 
 Status DavinciModel::InitWeightMem(void *dev_ptr, void *weight_ptr, size_t weight_size) {
@@ -739,7 +746,6 @@ Status DavinciModel::ReportProfilingData() {
   }
   ProfilingManager::Instance().ReportProfilingData(model_id_, GetTaskDescInfo(), compute_graph_desc_info);
   GE_CHK_STATUS(SinkModelProfile(), "Sink model profiler failed.");
-  op_list_.clear();
 
   return SUCCESS;
 }
@@ -938,11 +944,15 @@ Status DavinciModel::InitInputOutputForDynamic(const ComputeGraphPtr &compute_gr
     }
     if (IsDataOp(op_desc->GetType())) {
       GELOGD("init data op %s", op_desc->GetName().c_str());
-      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 (op_desc->GetType() == NETOUTPUT) {
       GELOGD("init netouput op %s", op_desc->GetName().c_str());
-      output_op_list_.push_back(op_desc);
+      auto output_op = AttrUtils::CopyOpDesc(op_desc);
+      GE_CHECK_NOTNULL(output_op);
+      output_op_list_.push_back(output_op);
     }
   }
   return SUCCESS;
@@ -980,7 +990,9 @@ Status DavinciModel::InitDataOp(const NodePtr &node, uint32_t &data_op_index, ma
     return SUCCESS;
   }
 
-  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);
 
   // Make information for copy input data.
   const vector<int64_t> output_size_list = ModelUtils::GetOutputSize(op_desc);
@@ -1035,7 +1047,9 @@ void DavinciModel::AdjustDataOpList(const map<uint32_t, OpDescPtr> &data_by_inde
 
   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_EXEC(data_op, return);
+    data_op_list_.emplace_back(data_op);
   }
 }
 
@@ -1067,7 +1081,9 @@ Status DavinciModel::InitNetOutput(const NodePtr &node) {
     return SUCCESS;
   }
 
-  output_op_list_.push_back(op_desc);
+  auto output_op = AttrUtils::CopyOpDesc(op_desc);
+  GE_CHECK_NOTNULL(output_op);
+  output_op_list_.push_back(output_op);
   // Make information for copy output data.
   const vector<int64_t> input_size_list = ModelUtils::GetInputSize(op_desc);
   const vector<void *> virtual_addr_list = ModelUtils::GetInputDataAddrs(runtime_param_, op_desc);
diff --git a/ge/graph/load/new_model_manager/davinci_model.h b/ge/graph/load/new_model_manager/davinci_model.h
index a8013f7d..23a0c878 100755
--- a/ge/graph/load/new_model_manager/davinci_model.h
+++ b/ge/graph/load/new_model_manager/davinci_model.h
@@ -480,6 +480,10 @@ class DavinciModel {
     data_dumper_.SaveDumpTask(task_id, stream_id, op_desc, args);
   }
 
+  void DumperShrink() {
+    data_dumper_.DumpShrink();
+  }
+
   void SetEndGraphId(uint32_t task_id, uint32_t stream_id);
   DavinciModel &operator=(const DavinciModel &model) = delete;
 
@@ -641,6 +645,8 @@ class DavinciModel {
 
   void ReleaseTask();
 
+  void ClearTaskAddrs();
+
   void UnbindTaskSinkStream();
 
   bool IsAicpuKernelConnectSpecifiedLayer();
@@ -863,12 +869,12 @@ class DavinciModel {
   string om_name_;
 
   uint32_t version_;
-  GeModelPtr ge_model_;
+  GeModelPtr ge_model_;  // release after DavinciModel::Init
 
   bool need_destroy_aicpu_kernel_{false};
   vector<std::string> out_node_name_;
 
-  map<uint32_t, OpDescPtr> op_list_;
+  map<uint32_t, OpDescPtr> op_list_;  // release after DavinciModel::Init
 
   // data op_desc
   vector<OpDescPtr> data_op_list_;
@@ -965,7 +971,7 @@ class DavinciModel {
   DataDumper data_dumper_;
   uint64_t iterator_count_;
   bool is_l1_fusion_enable_;
-  std::map<OpDescPtr, void *> saved_task_addrs_;
+  std::map<OpDescPtr, void *> saved_task_addrs_;  // release after DavinciModel::Init
   void *l1_fusion_addr_ = nullptr;
 
   bool known_node_ = false;
diff --git a/metadef b/metadef
index e96b3d79..961f1300 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit e96b3d797ad7611357cc4f460e719a83aba3fc3d
+Subproject commit 961f1300fa92b74fcab43348adad85070d43eed2
diff --git a/tests/ut/ge/CMakeLists.txt b/tests/ut/ge/CMakeLists.txt
index c209d989..74fa7f9e 100755
--- a/tests/ut/ge/CMakeLists.txt
+++ b/tests/ut/ge/CMakeLists.txt
@@ -559,7 +559,7 @@ set(COMMON_TEST_FILES
 set(DISTINCT_GRAPH_LOAD_TEST_FILES
     "graph/load/data_dumper_unittest.cc"
     #"graph/load/new_model_manager_data_inputer_unittest.cc"
-    #"graph/load/new_model_manager_davinci_model_unittest.cc"
+    "graph/load/new_model_manager_davinci_model_unittest.cc"
     #"graph/load/new_model_manager_model_manager_unittest.cc"
     #"graph/load/new_model_manager_task_build_unittest.cc"
     "graph/load/end_graph_task_unittest.cc"
diff --git a/tests/ut/ge/graph/load/new_model_manager_davinci_model_unittest.cc b/tests/ut/ge/graph/load/new_model_manager_davinci_model_unittest.cc
index 44642f93..00069930 100644
--- a/tests/ut/ge/graph/load/new_model_manager_davinci_model_unittest.cc
+++ b/tests/ut/ge/graph/load/new_model_manager_davinci_model_unittest.cc
@@ -254,6 +254,17 @@ TEST_F(UtestModelManagerDavinciModel, eventlist_success) {
   delete model;
 }
 
+// test Shrink
+TEST_F(UtestModelManagerDavinciModel, shrink_success) {
+  DavinciModel model(0, g_label_call_back);
+  OpDescPtr op_desc_ptr = make_shared<OpDesc>("Cast", "Cast");
+  void *addr = nullptr;
+  rtMalloc(&addr, 128, RT_MEMORY_HBM);
+  model.saved_task_addrs_.emplace(op_desc_ptr, addr);
+  model.Shrink();
+  EXPECT_EQ(model.saved_task_addrs_.isEmpty(), true);
+}
+
 // test rtMalloc
 TEST_F(UtestModelManagerDavinciModel, failed_reset_device) {
   DavinciModel model(0, g_label_call_back);