diff --git a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt
index 6cbfd29112..85513eac01 100644
--- a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt
+++ b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/Puerts_il2cpp.cpp.txt
@@ -1955,7 +1955,7 @@ puerts::JsEnvPrivate* InitialPapiEnvRef(struct pesapi_ffi* apis, pesapi_env_ref
     auto env = apis->get_env_from_ref(envRef);
     auto jsEnvPrivate = new puerts::JsEnvPrivate(apis, envRef, objPool, objPoolAddMethodInfo, objPoolRemoveMethodInfo);
     apis->set_env_private(env, jsEnvPrivate);
-    auto func = apis->create_function(env, LoadTypeWrapper, nullptr);
+    auto func = apis->create_function(env, LoadTypeWrapper, nullptr, nullptr);
     if (func)
     {
         pesapi_value global = apis->global(env);
diff --git a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt
index cd421a7314..b8bc9b902d 100644
--- a/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt
+++ b/unity/Assets/core/upm/Editor/Resources/puerts/xil2cpp/pesapi.h.txt
@@ -127,6 +127,7 @@ typedef struct pesapi_property_descriptor__* pesapi_property_descriptor;
 typedef void (*pesapi_callback)(struct pesapi_ffi* apis, pesapi_callback_info info);
 typedef void* (*pesapi_constructor)(struct pesapi_ffi* apis, pesapi_callback_info info);
 typedef void (*pesapi_finalize)(struct pesapi_ffi* apis, void* ptr, void* class_data, void* env_private);
+typedef void (*pesapi_function_finalize)(struct pesapi_ffi* apis, void* data, void* env_private);
 typedef void* (*pesapi_on_native_object_enter)(void* ptr, void* class_data, void* env_private);
 // userdata: return of pesapi_on_native_object_enter
 typedef void (*pesapi_on_native_object_exit)(void* ptr, void* class_data, void* env_private, void* userdata);
@@ -152,7 +153,7 @@ typedef pesapi_value (*pesapi_create_string_utf8_func)(pesapi_env env, const cha
 typedef pesapi_value (*pesapi_create_binary_func)(pesapi_env env, void* str, size_t length);
 typedef pesapi_value (*pesapi_create_array_func)(pesapi_env env);
 typedef pesapi_value (*pesapi_create_object_func)(pesapi_env env);
-typedef pesapi_value (*pesapi_create_function_func)(pesapi_env env, pesapi_callback native_impl, void* data);
+typedef pesapi_value (*pesapi_create_function_func)(pesapi_env env, pesapi_callback native_impl, void* data, pesapi_function_finalize finalize);
 typedef pesapi_value (*pesapi_create_class_func)(pesapi_env env, const void* type_id);
 
 typedef bool (*pesapi_get_value_bool_func)(pesapi_env env, pesapi_value value);
diff --git a/unity/Assets/core/upm/Runtime/Src/IL2Cpp/JsEnv.cs b/unity/Assets/core/upm/Runtime/Src/IL2Cpp/JsEnv.cs
index 5a2c607608..8f191c9322 100644
--- a/unity/Assets/core/upm/Runtime/Src/IL2Cpp/JsEnv.cs
+++ b/unity/Assets/core/upm/Runtime/Src/IL2Cpp/JsEnv.cs
@@ -154,7 +154,7 @@ public JsEnv(ILoader loader, int debugPort = -1)
             PuertsIl2cpp.pesapi_ffi ffi = Marshal.PtrToStructure<PuertsIl2cpp.pesapi_ffi>(apis);
             var scope = ffi.open_scope(nativePesapiEnv);
             var env = ffi.get_env_from_ref(nativePesapiEnv);
-            var func = ffi.create_function(env, FooImpl, IntPtr.Zero);
+            var func = ffi.create_function(env, FooImpl, IntPtr.Zero, IntPtr.Zero);
             var global = ffi.global(env);
             ffi.set_property(env, global, "CSharpFoo", func);
             ffi.close_scope(scope);
diff --git a/unity/Assets/core/upm/Runtime/Src/IL2Cpp/Native/NativeAPI.cs b/unity/Assets/core/upm/Runtime/Src/IL2Cpp/Native/NativeAPI.cs
index a9611ab259..9a665fa123 100644
--- a/unity/Assets/core/upm/Runtime/Src/IL2Cpp/Native/NativeAPI.cs
+++ b/unity/Assets/core/upm/Runtime/Src/IL2Cpp/Native/NativeAPI.cs
@@ -259,7 +259,7 @@ public static void SetLogCallback(LogCallback log)
     public delegate IntPtr pesapi_create_binary_func(IntPtr env, IntPtr str, UIntPtr length);
     public delegate IntPtr pesapi_create_array_func(IntPtr env);
     public delegate IntPtr pesapi_create_object_func(IntPtr env);
-    public delegate IntPtr pesapi_create_function_func(IntPtr env, pesapi_callback native_impl, IntPtr data);
+    public delegate IntPtr pesapi_create_function_func(IntPtr env, pesapi_callback native_impl, IntPtr data, IntPtr finalize);
     public delegate IntPtr pesapi_create_class_func(IntPtr env, IntPtr type_id);
 
     public delegate bool pesapi_get_value_bool_func(IntPtr env, IntPtr value);
diff --git a/unity/native_src/Inc/CppObjectMapper.h b/unity/native_src/Inc/CppObjectMapper.h
index f45ce39053..81fb79e509 100644
--- a/unity/native_src/Inc/CppObjectMapper.h
+++ b/unity/native_src/Inc/CppObjectMapper.h
@@ -48,6 +48,9 @@ struct PesapiCallbackData
 {
     pesapi_callback Callback;
     void* Data;
+    class FCppObjectMapper* CppObjectMapper;
+    v8::Global<v8::Function> JsFunction;
+    pesapi_function_finalize Finalize = nullptr;
 };
 
 class FCppObjectMapper final : public ICppObjectMapper
@@ -64,7 +67,7 @@ class FCppObjectMapper final : public ICppObjectMapper
     virtual v8::Local<v8::Value> FindOrAddCppObject(
         v8::Isolate* Isolate, v8::Local<v8::Context>& Context, const void* TypeId, void* Ptr, bool PassByPointer) override;
         
-    virtual v8::MaybeLocal<v8::Function> CreateFunction(v8::Local<v8::Context> Context, pesapi_callback Callback, void* Data) override;
+    virtual v8::MaybeLocal<v8::Function> CreateFunction(v8::Local<v8::Context> Context, pesapi_callback Callback, void* Data, pesapi_function_finalize Finalize) override;
 
     virtual void UnBindCppObject(v8::Isolate* Isolate, JSClassDefinition* ClassDefinition, void* Ptr) override;
 
@@ -94,6 +97,8 @@ class FCppObjectMapper final : public ICppObjectMapper
 #endif
 
     std::shared_ptr<int> Ref = std::make_shared<int>(0);
+    
+    static void CallbackDataGarbageCollected(const v8::WeakCallbackInfo<PesapiCallbackData>& Data);
 };
 
 }    // namespace PUERTS_NAMESPACE
\ No newline at end of file
diff --git a/unity/native_src/Inc/ObjectMapper.h b/unity/native_src/Inc/ObjectMapper.h
index 4cd48a43ba..9b4ab652eb 100644
--- a/unity/native_src/Inc/ObjectMapper.h
+++ b/unity/native_src/Inc/ObjectMapper.h
@@ -39,7 +39,7 @@ class ICppObjectMapper
         v8::Isolate* Isolate, v8::Local<v8::Context>& Context, const void* TypeId, void* Ptr, bool PassByPointer) = 0;
         
         
-    virtual v8::MaybeLocal<v8::Function> CreateFunction(v8::Local<v8::Context> Context, pesapi_callback Callback, void* Data) = 0;
+    virtual v8::MaybeLocal<v8::Function> CreateFunction(v8::Local<v8::Context> Context, pesapi_callback Callback, void* Data, pesapi_function_finalize Finalize) = 0;
 
     virtual bool IsInstanceOfCppObject(v8::Isolate* Isolate, const void* TypeId, v8::Local<v8::Object> JsObject) = 0;
 
diff --git a/unity/native_src/Inc/pesapi.h b/unity/native_src/Inc/pesapi.h
index cd421a7314..b8bc9b902d 100644
--- a/unity/native_src/Inc/pesapi.h
+++ b/unity/native_src/Inc/pesapi.h
@@ -127,6 +127,7 @@ typedef struct pesapi_property_descriptor__* pesapi_property_descriptor;
 typedef void (*pesapi_callback)(struct pesapi_ffi* apis, pesapi_callback_info info);
 typedef void* (*pesapi_constructor)(struct pesapi_ffi* apis, pesapi_callback_info info);
 typedef void (*pesapi_finalize)(struct pesapi_ffi* apis, void* ptr, void* class_data, void* env_private);
+typedef void (*pesapi_function_finalize)(struct pesapi_ffi* apis, void* data, void* env_private);
 typedef void* (*pesapi_on_native_object_enter)(void* ptr, void* class_data, void* env_private);
 // userdata: return of pesapi_on_native_object_enter
 typedef void (*pesapi_on_native_object_exit)(void* ptr, void* class_data, void* env_private, void* userdata);
@@ -152,7 +153,7 @@ typedef pesapi_value (*pesapi_create_string_utf8_func)(pesapi_env env, const cha
 typedef pesapi_value (*pesapi_create_binary_func)(pesapi_env env, void* str, size_t length);
 typedef pesapi_value (*pesapi_create_array_func)(pesapi_env env);
 typedef pesapi_value (*pesapi_create_object_func)(pesapi_env env);
-typedef pesapi_value (*pesapi_create_function_func)(pesapi_env env, pesapi_callback native_impl, void* data);
+typedef pesapi_value (*pesapi_create_function_func)(pesapi_env env, pesapi_callback native_impl, void* data, pesapi_function_finalize finalize);
 typedef pesapi_value (*pesapi_create_class_func)(pesapi_env env, const void* type_id);
 
 typedef bool (*pesapi_get_value_bool_func)(pesapi_env env, pesapi_value value);
diff --git a/unity/native_src/Src/CppObjectMapper.cpp b/unity/native_src/Src/CppObjectMapper.cpp
index 688a7798f9..6c8e9e413d 100644
--- a/unity/native_src/Src/CppObjectMapper.cpp
+++ b/unity/native_src/Src/CppObjectMapper.cpp
@@ -120,12 +120,36 @@ static void PesapiFunctionCallback(const v8::FunctionCallbackInfo<v8::Value>& in
     FunctionInfo->Callback(&v8impl::g_pesapi_ffi, (pesapi_callback_info)(&info));
 }
 
-v8::MaybeLocal<v8::Function> FCppObjectMapper::CreateFunction(v8::Local<v8::Context> Context, pesapi_callback Callback, void* Data)
+void FCppObjectMapper::CallbackDataGarbageCollected(const v8::WeakCallbackInfo<PesapiCallbackData>& Data)
 {
-    auto CallbackData = new PesapiCallbackData {Callback, Data};
-    FunctionDatas.push_back(CallbackData);
+    PesapiCallbackData* CallbackData = Data.GetParameter();
+    if (CallbackData->Finalize)
+    {
+        CallbackData->Finalize(&v8impl::g_pesapi_ffi, CallbackData->Data, DataTransfer::GetIsolatePrivateData(Data.GetIsolate()));
+    }
+    CallbackData->CppObjectMapper->FunctionDatas.erase(std::remove(CallbackData->CppObjectMapper->FunctionDatas.begin(), CallbackData->CppObjectMapper->FunctionDatas.end(),
+        CallbackData), CallbackData->CppObjectMapper->FunctionDatas.end());
+    delete CallbackData;
+}
+
+v8::MaybeLocal<v8::Function> FCppObjectMapper::CreateFunction(v8::Local<v8::Context> Context, pesapi_callback Callback, void* Data, pesapi_function_finalize Finalize)
+{
+    auto CallbackData = new PesapiCallbackData {Callback, Data, this};
+    CallbackData->Finalize = Finalize;
     auto V8Data = v8::External::New(Context->GetIsolate(), &CallbackData->Data);
-    return v8::FunctionTemplate::New(Context->GetIsolate(), PesapiFunctionCallback, V8Data)->GetFunction(Context);
+    auto Ret = v8::FunctionTemplate::New(Context->GetIsolate(), PesapiFunctionCallback, V8Data)->GetFunction(Context);
+    if (!Ret.IsEmpty())
+    {
+        CallbackData->JsFunction.Reset(Context->GetIsolate(), Ret.ToLocalChecked());
+        CallbackData->JsFunction.SetWeak<PesapiCallbackData>(
+            CallbackData, CallbackDataGarbageCollected, v8::WeakCallbackType::kInternalFields);
+        FunctionDatas.push_back(CallbackData);
+    }
+    else
+    {
+        delete CallbackData;
+    }
+    return Ret;
 }
 
 bool FCppObjectMapper::IsInstanceOfCppObject(v8::Isolate* Isolate, const void* TypeId, v8::Local<v8::Object> JsObject)
@@ -444,7 +468,12 @@ void FCppObjectMapper::UnInitialize(v8::Isolate* InIsolate)
     }
     for(int i = 0;i < FunctionDatas.size(); ++i)
     {
-        delete FunctionDatas[i];
+        auto CallbackData = FunctionDatas[i];
+        if (CallbackData->Finalize)
+        {
+            CallbackData->Finalize(&v8impl::g_pesapi_ffi, CallbackData->Data, PData);
+        }
+        delete CallbackData;
     }
     FunctionDatas.clear();
     CDataCache.clear();
diff --git a/unity/native_src/Src/PesapiV8Impl.cpp b/unity/native_src/Src/PesapiV8Impl.cpp
index 4029436324..fdef18e4b7 100644
--- a/unity/native_src/Src/PesapiV8Impl.cpp
+++ b/unity/native_src/Src/PesapiV8Impl.cpp
@@ -163,10 +163,10 @@ pesapi_value pesapi_create_object(pesapi_env env)
     return v8impl::PesapiValueFromV8LocalValue(v8::Object::New(context->GetIsolate()));
 }
 
-pesapi_value pesapi_create_function(pesapi_env env, pesapi_callback native_impl, void* data)
+pesapi_value pesapi_create_function(pesapi_env env, pesapi_callback native_impl, void* data, pesapi_function_finalize finalize)
 {
     auto context = v8impl::V8LocalContextFromPesapiEnv(env);
-    auto func = puerts::DataTransfer::IsolateData<puerts::ICppObjectMapper>(context->GetIsolate())->CreateFunction(context, native_impl, data);
+    auto func = puerts::DataTransfer::IsolateData<puerts::ICppObjectMapper>(context->GetIsolate())->CreateFunction(context, native_impl, data, finalize);
     if (func.IsEmpty())
         return nullptr;
     return v8impl::PesapiValueFromV8LocalValue(func.ToLocalChecked());