diff --git a/tests/ut/ge/single_op/single_op_model_unittest.cc b/tests/ut/ge/single_op/single_op_model_unittest.cc
index 7b7a05d8..41b70900 100644
--- a/tests/ut/ge/single_op/single_op_model_unittest.cc
+++ b/tests/ut/ge/single_op/single_op_model_unittest.cc
@@ -315,7 +315,7 @@ TEST_F(UtestSingleOpModel, BuildTaskList) {
   ASSERT_EQ(mem_task.LaunchKernel(0), SUCCESS);
 }
 
-TEST_F(UtestSingleOpModel, build_dynamic_task) {
+TEST_F(UtestSingleOpModel, build_dynamic_task01) {
   ComputeGraphPtr graph = make_shared<ComputeGraph>("single_op");
   GeModelPtr ge_model = make_shared<GeModel>();
   ge_model->SetGraph(GraphUtils::CreateGraphFromComputeGraph(graph));
@@ -366,3 +366,35 @@ TEST_F(UtestSingleOpModel, build_dynamic_task) {
   op_desc->SetOpKernelLibName(kEngineNameAiCpu);
   model.BuildTaskListForDynamicOp(res, single_op);
 }
+
+TEST_F(UtestSingleOpModel, build_dynamic_task02) {
+  ComputeGraphPtr graph = make_shared<ComputeGraph>("single_op");
+  GeModelPtr ge_model = make_shared<GeModel>();
+  ge_model->SetGraph(GraphUtils::CreateGraphFromComputeGraph(graph));
+  shared_ptr<domi::ModelTaskDef> model_task_def = make_shared<domi::ModelTaskDef>();
+  ge_model->SetModelTaskDef(model_task_def);
+
+  domi::TaskDef *task_def = model_task_def->add_task();
+  task_def->set_type(RT_MODEL_TASK_KERNEL);
+  domi::KernelDef *kernel_def = task_def->mutable_kernel();
+  domi::KernelContext *context = kernel_def->mutable_context();
+  context->set_kernel_type(6);    // ccKernelType::AI_CPU
+
+  string model_data_str = "dynamic_model";
+  SingleOpModel model("model", model_data_str.c_str(), model_data_str.size());
+  std::mutex stream_mu;
+  rtStream_t stream = nullptr;
+  rtStreamCreate(&stream, 0);
+  DynamicSingleOp single_op(0, &stream_mu, stream);
+  model.model_helper_.model_ = ge_model;
+  auto op_desc = std::make_shared<ge::OpDesc>("add", "Add");
+  AttrUtils::SetStr(op_desc, ge::ATTR_NAME_UNKNOWN_SHAPE_TYPE, ge::DEPEND_COMPUTE);
+  NodePtr node = graph->AddNode(op_desc); 
+  model.op_list_[0] = node;
+  StreamResource *res = new (std::nothrow) StreamResource(1);
+
+  ASSERT_EQ(model.ParseTasks(), SUCCESS);
+  model.node_tasks_[node] = { *task_def2 };
+  op_desc->SetOpKernelLibName(kEngineNameAiCpu);
+  model.BuildTaskListForDynamicOp(res, single_op);
+}
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