diff --git a/Plugins/slua_unreal/Source/slua_unreal/Private/LuaBase.cpp b/Plugins/slua_unreal/Source/slua_unreal/Private/LuaBase.cpp
index 91a9c2b4..0ceff337 100644
--- a/Plugins/slua_unreal/Source/slua_unreal/Private/LuaBase.cpp
+++ b/Plugins/slua_unreal/Source/slua_unreal/Private/LuaBase.cpp
@@ -44,7 +44,7 @@ namespace NS_SLUA {
 		NS_SLUA::LuaVar lfunc = luaSelfTable.getFromTable<NS_SLUA::LuaVar>((const char*)TCHAR_TO_UTF8(*func->GetName()), true);
 		if (!lfunc.isValid()) return false;
 
-		return lfunc.callByUFunction(func, (uint8*)params, &luaSelfTable);
+		return lfunc.callByUFunction(func, (uint8*)params, nullptr, nullptr, &luaSelfTable);
 	}
 
 	// Called every frame
@@ -246,7 +246,7 @@ namespace NS_SLUA {
 		LuaVar& luaSelfTable = lb->luaSelfTable;
 		NS_SLUA::LuaVar lfunc = luaSelfTable.getFromTable<NS_SLUA::LuaVar>(func->GetName(), true);
 		if (lfunc.isValid()) {
-			lfunc.callByUFunction(func, (uint8*)params, &luaSelfTable, Stack.OutParms);
+			lfunc.callByUFunction(func, (uint8*)params, Stack.OutParms, nullptr, &luaSelfTable);
 			*(bool*)RESULT_PARAM = true;
 		}
 		else {
diff --git a/Plugins/slua_unreal/Source/slua_unreal/Private/LuaVar.cpp b/Plugins/slua_unreal/Source/slua_unreal/Private/LuaVar.cpp
index fa934e0d..730271f7 100644
--- a/Plugins/slua_unreal/Source/slua_unreal/Private/LuaVar.cpp
+++ b/Plugins/slua_unreal/Source/slua_unreal/Private/LuaVar.cpp
@@ -587,7 +587,7 @@ namespace NS_SLUA {
         return 0;
     }
 
-    bool LuaVar::callByUFunction(UFunction* func,uint8* parms, LuaVar* pSelf, FOutParmRec* OutParms) {
+    bool LuaVar::callByUFunction(UFunction* func,uint8* parms,FOutParmRec *outParams,RESULT_DECL,LuaVar* pSelf) {
         
         if(!func) return false;
 
@@ -640,6 +640,9 @@ namespace NS_SLUA {
             auto checkder = prop?LuaObject::getChecker(prop):nullptr;
             if (checkder) {
                 (*checkder)(L, prop, parms+prop->GetOffset_ForInternal(), lua_absindex(L, -remain));
+                if (RESULT_PARAM) {
+                    prop->CopyCompleteValue(RESULT_PARAM, prop->ContainerPtrToValuePtr<uint8>(parms));
+                }
             }
 			remain--;
         }
@@ -648,16 +651,18 @@ namespace NS_SLUA {
 		for (TFieldIterator<UProperty> it(func); remain >0 && it && (it->PropertyFlags&CPF_Parm); ++it) {
 			UProperty* prop = *it;
 			uint64 propflag = prop->GetPropertyFlags();
-			if (IsRealOutParam(propflag))
-			{
-				auto checkder = prop ? LuaObject::getChecker(prop) : nullptr;
-				uint8* outPamams = OutParms ? OutParms->PropAddr : parms + prop->GetOffset_ForInternal();
-				if (checkder) {
-					(*checkder)(L, prop, outPamams, lua_absindex(L, -remain));
-				}
-				if(OutParms) OutParms = OutParms->NextOutParm;
-				remain--;
-			}
+            if (IsRealOutParam(propflag)) {
+                auto checker = LuaObject::getChecker(prop);
+                FOutParmRec* out = outParams;
+                while (out && out->Property != prop) {
+                    out = out->NextOutParm;
+                }
+                uint8* outParam = out ? out->PropAddr : parms + prop->GetOffset_ForInternal();
+                if (checker) {
+                    (*checker)(L, prop, outParam, lua_absindex(L, -remain));
+                }
+                remain--;
+            }
 		}
         // pop returned value
         lua_pop(L, retCount);
diff --git a/Plugins/slua_unreal/Source/slua_unreal/Public/LuaObject.h b/Plugins/slua_unreal/Source/slua_unreal/Public/LuaObject.h
index 946c04a8..83d66fb0 100644
--- a/Plugins/slua_unreal/Source/slua_unreal/Public/LuaObject.h
+++ b/Plugins/slua_unreal/Source/slua_unreal/Public/LuaObject.h
@@ -369,8 +369,7 @@ namespace NS_SLUA {
         // return the pointer of class, otherwise return nullptr
         template<typename T>
         static T* checkUD(lua_State* L,int p,bool checkfree=true) {
-			if (lua_isnil(L, p))
-			{
+			if (lua_isnoneornil(L, p)) {
 				return nullptr;
 			}
 
diff --git a/Plugins/slua_unreal/Source/slua_unreal/Public/LuaVar.h b/Plugins/slua_unreal/Source/slua_unreal/Public/LuaVar.h
index b1154fc1..62e6397b 100644
--- a/Plugins/slua_unreal/Source/slua_unreal/Public/LuaVar.h
+++ b/Plugins/slua_unreal/Source/slua_unreal/Public/LuaVar.h
@@ -239,7 +239,7 @@ namespace NS_SLUA {
         }
 
         bool toProperty(UProperty* p,uint8* ptr);
-        bool callByUFunction(UFunction* ufunc,uint8* parms,LuaVar* pSelf = nullptr,FOutParmRec* OutParms = nullptr);
+        bool callByUFunction(UFunction* ufunc,uint8* parms,struct FOutParmRec *outParams=nullptr,RESULT_DECL=nullptr,LuaVar* pSelf=nullptr);
 
 		// get associate state
 		lua_State* getState() const;