diff --git a/parser/common/convert/pb2json.cc b/parser/common/convert/pb2json.cc
index af13ed2..4a0ab94 100644
--- a/parser/common/convert/pb2json.cc
+++ b/parser/common/convert/pb2json.cc
@@ -18,6 +18,7 @@
 // Description: This imply file for protobuf message and json interconversion
 
 #include "common/convert/pb2json.h"
+#include <google/protobuf/text_format.h>
 #include <set>
 #include <string>
 #include "securec.h"
@@ -129,8 +130,11 @@ void Pb2Json::OneField2Json(const ProtobufMsg &message, const ProtobufFieldDescr
 
     case ProtobufFieldDescriptor::TYPE_BYTES: {
       string field_name = field->name();
-      string type_bytes = reflection->GetString(message, field);
-      json[field_name] = TypeBytes2String(field_name, type_bytes);
+      std::string scratch;
+      std::string value = reflection->GetStringReference(message, field, &scratch);
+      std::string cescape_value = google::protobuf::CEscape(value);
+      GELOGD("After cescape data:%s", cescape_value.c_str());
+      json[field_name] = cescape_value;
       break;
     }
 
diff --git a/tests/ut/parser/CMakeLists.txt b/tests/ut/parser/CMakeLists.txt
index b93e231..65804fc 100644
--- a/tests/ut/parser/CMakeLists.txt
+++ b/tests/ut/parser/CMakeLists.txt
@@ -356,5 +356,5 @@ target_link_libraries(ut_parser
     ut_parser_proto
     -Wl,--whole-archive ut_parser_common -Wl,--no-whole-archive
     ut_parser_graph ut_parser_register error_manager_stub mmpa_stub attr_util_stub
-    gtest gtest_main slog_stub ascend_protobuf c_sec  -lrt -ldl -lgcov
+    gtest gtest_main slog_stub ascend_protobuf c_sec json -lrt -ldl -lgcov
 )
diff --git a/tests/ut/parser/testcase/onnx_parser_testcase/message2operator_unittest.cc b/tests/ut/parser/testcase/onnx_parser_testcase/message2operator_unittest.cc
index 39e1480..59ae9b1 100644
--- a/tests/ut/parser/testcase/onnx_parser_testcase/message2operator_unittest.cc
+++ b/tests/ut/parser/testcase/onnx_parser_testcase/message2operator_unittest.cc
@@ -19,6 +19,7 @@
 #include <gtest/gtest.h>
 
 #include "proto/onnx/ge_onnx.pb.h"
+#include "parser/common/convert/pb2json.h"
 
 namespace ge {
 class UtestMessage2Operator : public testing::Test {
@@ -55,4 +56,17 @@ TEST_F(UtestMessage2Operator, message_to_operator_fail) {
   ret = Message2Operator::ParseOperatorAttrs(attribute, 1, op_src);
   EXPECT_EQ(ret, FAILED);
 }
+
+TEST_F(UtestMessage2Operator, pb2json_one_field_json) {
+  ge::onnx::NodeProto input_node;
+  ge::onnx::AttributeProto *attribute = input_node.add_attribute();
+  attribute->set_name("attribute");
+  attribute->set_type(onnx::AttributeProto::AttributeType(1));
+  ge::onnx::TensorProto *attribute_tensor = attribute->mutable_t();
+  attribute_tensor->set_data_type(1);
+  attribute_tensor->add_dims(4);
+  attribute_tensor->set_raw_data("\007");
+  Json json;
+  ge::Pb2Json::Message2Json(input_node, std::set<std::string>{}, json, true);
+}
 }  // namespace ge
\ No newline at end of file