diff --git a/graph/ascendc_ir/generator/ascir_register.cc b/graph/ascendc_ir/generator/ascir_register.cc
index 1addc8ae47c360020c414b8123c5ad5210fab2c6..25e421832e8836fb8158cf217fcf2da6d1f5b85f 100644
--- a/graph/ascendc_ir/generator/ascir_register.cc
+++ b/graph/ascendc_ir/generator/ascir_register.cc
@@ -102,6 +102,7 @@ AscirRegister &AscirRegister::DynamicInput(const char_t *input_name, const char_
 
 AscirRegister &AscirRegister::DynamicOutput(const char_t *output_name, const char_t *datatype_symbol) {
   ir_def_.AppendOutput(output_name, ge::IrOutputType::kIrOutputDynamic);
+  ir_def_.StoreOutputIrSymName(output_name, datatype_symbol);
   ir_def_.MutableDataTypeSymbolStore().SetOutputSymbol(output_name, ge::kIrOutputDynamic, datatype_symbol);
   return *this;
 }
diff --git a/tests/ut/ascendc_ir/stub/ascir_stub_builtin_ops_v2.cc b/tests/ut/ascendc_ir/stub/ascir_stub_builtin_ops_v2.cc
index 577b142ab6a41ac54959dede3f3e4df0bab8c4d9..1940c7234170372d256a5537ee4db9dcb0efbba2 100644
--- a/tests/ut/ascendc_ir/stub/ascir_stub_builtin_ops_v2.cc
+++ b/tests/ut/ascendc_ir/stub/ascir_stub_builtin_ops_v2.cc
@@ -1,4 +1,4 @@
-/* Copyright (c) 2025 Huawei Technologies Co., Ltd.
+ /* Copyright (c) 2025 Huawei Technologies Co., Ltd.
 * This file is a part of the CANN Open Software.
 * Licensed under CANN Open Software License Agreement Version 1.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
@@ -99,5 +99,12 @@ REG_ASC_IR(StubOp9New)
             {"T4", OrderedTensorTypeList{DT_BOOL, DT_DOUBLE, DT_FLOAT}},
             {"T5", OrderedTensorTypeList{DT_BOOL, DT_COMPLEX128, DT_DUAL}}}});
 
+REG_ASC_IR(VFStub)
+    .DynamicInput("x", "T")
+    .DynamicOutput("y", "T")
+    .Impl({"socv2", "socv3"}, {nullptr,
+                            nullptr,
+                            {{"T",  TensorType{DT_INT32, DT_INT64,DT_UINT16}}}});
+
 }  // namespace ascir
 }  // namespace ge
diff --git a/tests/ut/ascendc_ir/testcase/ascendc_ir_unittest.cc b/tests/ut/ascendc_ir/testcase/ascendc_ir_unittest.cc
index 3aef9048109966925113bc52a3071a51f6c8386e..bd4ab1a67a523e72ead5886fb375f6c57c3c5932 100644
--- a/tests/ut/ascendc_ir/testcase/ascendc_ir_unittest.cc
+++ b/tests/ut/ascendc_ir/testcase/ascendc_ir_unittest.cc
@@ -3676,7 +3676,8 @@ inline ge::Status CommonInferDtype(const std::string &type, const std::vector<Da
     {"StubOp10", ::ge::ascir_op::StubOp10::InferDataType},
     {"StubOp11", ::ge::ascir_op::StubOp11::InferDataType},
     {"StubRemovePad", ::ge::ascir_op::StubRemovePad::InferDataType},
-    };
+    {"VFStub", ::ge::ascir_op::VFStub::InferDataType},
+  };
   const auto &iter = func_table.find(type);
   if (iter != func_table.end()) {
     return iter->second(input_dtypes, expect_output_dtypes);
@@ -3767,6 +3768,7 @@ inline ge::Status CommonInferDtypeWithNoCheck(const std::string &type, const std
     {"StubOp10", ::ge::ascir_op::StubOp10::InferDataTypeWithNoCheck},
     {"StubOp11", ::ge::ascir_op::StubOp11::InferDataTypeWithNoCheck},
     {"StubRemovePad", ::ge::ascir_op::StubRemovePad::InferDataTypeWithNoCheck},
+    {"VFStub", ::ge::ascir_op::VFStub::InferDataTypeWithNoCheck},
   };
   const auto &iter = func_table.find(type);
   if (iter != func_table.end()) {