diff --git a/Plugins/kbengine_ue4_plugins/README.md b/Plugins/kbengine_ue4_plugins/README.md
index a522bbd..dc44240 100644
--- a/Plugins/kbengine_ue4_plugins/README.md
+++ b/Plugins/kbengine_ue4_plugins/README.md
@@ -209,6 +209,7 @@ KBE-Plugin fire-out events(KBE => UE4):
 
 			Event-datas: 
 				uint16: retcode
+				bytes: serverdatas
 					http://kbengine.github.io/docs/configuration/server_errors.html
 
 		onLoginBaseappFailed
diff --git a/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEngine.cpp b/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEngine.cpp
index 6d75de8..16b892c 100644
--- a/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEngine.cpp
+++ b/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEngine.cpp
@@ -462,7 +462,6 @@ void KBEngineApp::updatePlayerToServer()
 			pBundle->send(pNetworkInterface_);
 		}
 	}
-
 }
 
 void KBEngineApp::Client_onAppActiveTickCB()
@@ -728,6 +727,7 @@ void KBEngineApp::Client_onLoginFailed(MemoryStream& stream)
 	UKBEventData_onLoginFailed* pEventData = NewObject<UKBEventData_onLoginFailed>();
 	pEventData->failedcode = failedcode;
 	pEventData->errorStr = serverErr(failedcode);
+	pEventData->serverdatas = serverdatas_;
 	KBENGINE_EVENT_FIRE(KBEventTypes::onLoginFailed, pEventData);
 }
 
diff --git a/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEvent.h b/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEvent.h
index 417b25f..a08387b 100644
--- a/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEvent.h
+++ b/Plugins/kbengine_ue4_plugins/Source/KBEnginePlugins/Engine/KBEvent.h
@@ -171,6 +171,9 @@ class KBENGINEPLUGINS_API UKBEventData_onLoginFailed : public UKBEventData
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = KBEngine)
 	FString errorStr;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = KBEngine)
+	TArray<uint8> serverdatas;
 };
 
 UCLASS(Blueprintable, BlueprintType)