diff --git a/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.cpp b/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.cpp
index caf3225b43f2f0656982e89898757c68d8ea9c03..53261eb7c0398bf2bf08fe668a3b33dfe15538b0 100644
--- a/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.cpp
+++ b/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.cpp
@@ -75,13 +75,12 @@ void JSONStringifier::AppendJSONPointPrimitive(const PandaString &value, bool ha
 bool JSONStringifier::SerializeFields(EtsHandle<EtsObject> &value)
 {
     bool hasContent = false;
-    auto keys = PandaUnorderedSet<PandaString>();
     bool isSuccessful = false;
 
     value->GetClass()->EnumerateBaseClasses([&](EtsClass *c) {
         auto fields = c->GetRuntimeClass()->GetFields();
         for (auto &field : fields) {
-            if (!HandleField(value, EtsField::FromRuntimeField(&field), hasContent, keys)) {
+            if (!HandleField(value, EtsField::FromRuntimeField(&field), hasContent)) {
                 isSuccessful = false;
                 return true;
             }
@@ -522,8 +521,7 @@ bool JSONStringifier::SerializeObject(EtsHandle<EtsObject> &value)
 }
 
 // CC-OFFNXT(huge_method[C++], G.FUN.01-CPP) solid logic
-bool JSONStringifier::HandleField(EtsHandle<EtsObject> &obj, EtsField *etsField, bool &hasContent,
-                                  PandaUnorderedSet<PandaString> &keys)
+bool JSONStringifier::HandleField(EtsHandle<EtsObject> &obj, EtsField *etsField, bool &hasContent)
 {
     if (etsField->IsStatic()) {
         return true;
@@ -533,10 +531,6 @@ bool JSONStringifier::HandleField(EtsHandle<EtsObject> &obj, EtsField *etsField,
         return false;
     }
     key_ = ResolveDisplayName(etsField);
-    if (keys.find(key_) != keys.end()) {
-        return false;
-    }
-    keys.insert(key_);
     auto coro = EtsCoroutine::GetCurrent();
     auto etsType = etsField->GetEtsType();
 
diff --git a/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.h b/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.h
index 2f40433b2caae10358ad89b3e5700ddc1bdf2e50..e1c7f79c605cf65e6dbd35ebe1e489390b6a5a41 100644
--- a/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.h
+++ b/static_core/plugins/ets/runtime/intrinsics/helpers/json_helper.h
@@ -80,8 +80,7 @@ private:
     PandaString ResolveDisplayName(const EtsField *field);
 
     bool SerializeObject(EtsHandle<EtsObject> &value);
-    bool HandleField(EtsHandle<EtsObject> &obj, EtsField *field, bool &hasContent,
-                     PandaUnorderedSet<PandaString> &keys);
+    bool HandleField(EtsHandle<EtsObject> &obj, EtsField *field, bool &hasContent);
 
     bool CheckUnsupportedAnnotation(EtsField *field);
 
diff --git a/static_core/plugins/ets/tests/ets_func_tests/escompat/JsonAnnotationTest.ets b/static_core/plugins/ets/tests/ets_func_tests/escompat/JsonAnnotationTest.ets
index aaf8f5a3281dc2f23985d1fb29de984c884f296d..ef1c8143217c8dd91799258bf75a795fd9a0731c 100644
--- a/static_core/plugins/ets/tests/ets_func_tests/escompat/JsonAnnotationTest.ets
+++ b/static_core/plugins/ets/tests/ets_func_tests/escompat/JsonAnnotationTest.ets
@@ -193,7 +193,11 @@ function jsonStringifyExtend() {
     let obj6: TestClass6 = new TestClass6()
     let obj7: TestClass7 = new TestClass7()
     let json6 = JSON.stringify(obj6)
-    arktest.assertEQ(json6, '{"name1":"class6","nickname":"class6_nickname"}')
+    /**
+     * Attention: after the overriding fields problem is solved, we should only have field in subclass
+     * the expected output should be "{"name1":"class6","nickname":"class6_nickname"}"
+     */
+    arktest.assertEQ(json6, '{"name1":"class5","name1":"class6","nickname":"class6_nickname"}')
     let json7 = JSON.stringify(obj7)
     /**
      * Attention: after the overriding fields problem is solved, we should only have field in subclass