diff --git a/Assets/Scripts/Studio/Connect/StudioService.cs b/Assets/Scripts/Studio/Connect/StudioService.cs
index e219fe16..58e9e768 100644
--- a/Assets/Scripts/Studio/Connect/StudioService.cs
+++ b/Assets/Scripts/Studio/Connect/StudioService.cs
@@ -4,9 +4,6 @@ using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using UnityEngine;
-using Studio;
-using Studio.Core;
-using Studio.Conifg;
 
 namespace Studio
 {
@@ -22,17 +19,16 @@ namespace Studio
         }
     }
 
-    public class StudioService : UnitySingleton<StudioService>
+    public class StudioService
     {
+        #region Singleton
+        private static readonly StudioService Instance = new StudioService(new StudioRepoistory());
+        public static StudioService Instance => instance;
+        static StudioService() { }
+        #endregion
+
         private Dictionary<string, Dictionary<string, EventHandler<StudioServiceTypeEventArgs>>> listenerIdMap;
         private StudioRepoistory repository;
-        public bool isConnected
-        {
-            get
-            {
-                return repository.isConnected;
-            }
-        }
         private Dictionary<string, float> updateTime = new();
         private int totalRequestPacket;
         private int totalResponsePacket;
@@ -46,29 +42,11 @@ namespace Studio
         private string maxResponseTimeApi;
 
         public Dictionary<string, StudioEntityWithState<object>> apiData = new();
-        public Dictionary<string, (Dictionary<string, Dictionary<string, string>>, TimeSpan)> mqttData = new();
-
         private Dictionary<string, DateTime> lastUpdateTime = new();
 
         public event Action<string, StudioEntityWithState<object>> onAPIDataLoaded;
         public event Action<string, Dictionary<string, Dictionary<string, string>>, TimeSpan> onMQTTDataLoaded;
 
-        bool isMQTTConnected;
-
-        private void Awake()
-        {
-            this.repository = new StudioRepoistory();
-            listenerIdMap = new Dictionary<string, Dictionary<string, EventHandler<StudioServiceTypeEventArgs>>>();
-
-            repository.OnTopicList += OnTopicList;
-
-            Constants.MQTTDomain = "220.90.135.190";
-            Constants.APIDomain = "220.90.135.190";
-            Constants.APIPort = 23000;
-            Constants.MQTTPort = 8088;
-            ConnectMQTT();
-        }
-
         //private string 
         private StudioService(StudioRepoistory repository)
         {
@@ -80,12 +58,7 @@ namespace Studio
         }
         public void ConnectMQTT()
         {
-            if (isMQTTConnected)
-                return;
-
             repository.MQTTConnect();
-            repository.isMQTTConnected = true;
-            isMQTTConnected = true;
         }
 
         public void SubscribeMQTT(string topic)
@@ -116,15 +89,6 @@ namespace Studio
                 UpdateTopicData(type, idKey.Key, idKey.Value);
             }
 
-            if (!mqttData.ContainsKey(type))
-            {
-                mqttData.Add(type, (entities, elapsedTime));
-            }
-            else
-            {
-                mqttData[type] = (entities, elapsedTime);
-            }
-
             onMQTTDataLoaded?.Invoke(type, entities, elapsedTime); // 나중에 클래스 밖으로 이동 필요
         }
 
@@ -210,7 +174,7 @@ namespace Studio
                 Debug.Log($"APIState : Error , Message :{data.Message}");
             }
 
-             onAPIDataLoaded?.Invoke(url, data); // 나중에 클래스 밖으로 이동 필요
+            onAPIDataLoaded?.Invoke(url, data); // 나중에 클래스 밖으로 이동 필요
         }
 
         private void CheckAPIBoarder(string data, int reqSize, string url, long time)
diff --git a/Assets/Scripts/Studio/UI/Elements/UI_APIConnection.cs b/Assets/Scripts/Studio/UI/Elements/UI_APIConnection.cs
index c9b9a3d6..49bf013a 100644
--- a/Assets/Scripts/Studio/UI/Elements/UI_APIConnection.cs
+++ b/Assets/Scripts/Studio/UI/Elements/UI_APIConnection.cs
@@ -59,7 +59,7 @@ namespace Studio
             foreach (UI_InputURLItem item in inputURLItems)
             {
                 string url = "/api/" + item.InputField_URL.text;
-                await StudioService.instance.LoadBaseData(url);
+                await StudioService.Instance.LoadBaseData(url);
 
                 panel_DataRepository = FindAnyObjectByType<Panel_DataRepository>(FindObjectsInactive.Include);
                 panel_DataRepository.apiConnected = true;
diff --git a/Assets/Scripts/Studio/UI/Elements/UI_MQTTConnection.cs b/Assets/Scripts/Studio/UI/Elements/UI_MQTTConnection.cs
index 6efc6d11..54aa5c3c 100644
--- a/Assets/Scripts/Studio/UI/Elements/UI_MQTTConnection.cs
+++ b/Assets/Scripts/Studio/UI/Elements/UI_MQTTConnection.cs
@@ -55,7 +55,7 @@ namespace Studio
 
             foreach (UI_InputTopicItem item in inputTopicItems)
             {
-                StudioService.instance.SubscribeMQTT(item.InputField_Topic.text);
+                StudioService.Instance.SubscribeMQTT(item.InputField_Topic.text);
 
                 panel_DataRepository = FindAnyObjectByType<Panel_DataRepository>(FindObjectsInactive.Include);
                 panel_DataRepository.mqttConnected = true;
diff --git a/Assets/TMPFolder/Panel_DataRepository.cs b/Assets/TMPFolder/Panel_DataRepository.cs
index 1291710a..0c615252 100644
--- a/Assets/TMPFolder/Panel_DataRepository.cs
+++ b/Assets/TMPFolder/Panel_DataRepository.cs
@@ -82,7 +82,7 @@ namespace Studio
             */
             if (apiConnected)
             {
-                StudioService studioService = StudioService.instance;
+                StudioService studioService = StudioService.Instance;
 
                 studioService.onAPIDataLoaded += UpdateAPIDataButton;
 
@@ -94,7 +94,7 @@ namespace Studio
 
             if (mqttConnected)
             {
-                StudioService studioService = StudioService.instance;
+                StudioService studioService = StudioService.Instance;
 
                 studioService.onMQTTDataLoaded += UpdateMQTTDataButton;
 
@@ -159,7 +159,7 @@ namespace Studio
 
         public void ShowInformation_API()
         {
-            APITotalBoardEntity info = StudioService.instance.GetAPIStatusBoarder();
+            APITotalBoardEntity info = StudioService.Instance.GetAPIStatusBoarder();
 
             TotalRequestPacketSize.text = info.TotalRequestPacketSize.ToString();
             AverageRequestPacketSize.text = info.AverageRequestPacketSize.ToString();
diff --git a/Assets/TMPFolder/RJHTest.cs b/Assets/TMPFolder/RJHTest.cs
index 123c87ab..97e73f0e 100644
--- a/Assets/TMPFolder/RJHTest.cs
+++ b/Assets/TMPFolder/RJHTest.cs
@@ -16,14 +16,14 @@ namespace Studio
             Constants.APIDomain = "220.90.135.190";
             Constants.APIPort = 23000;
             Constants.MQTTPort = 8088;
-            StudioService.instance.ConnectMQTT();
+            StudioService.Instance.ConnectMQTT();
         }
 
         private async void Test()
         {
             await AuthService.Instance.Login("xr", "@dbqlTl1");
 
-            await StudioService.instance.LoadBaseData("/api/agv");
+            await StudioService.Instance.LoadBaseData("/api/agv");
             Debug.Log(AuthService.Instance.Entiti.accessToken);
         }
         private void Update()
@@ -34,12 +34,12 @@ namespace Studio
             }
             if (Input.GetKeyDown(KeyCode.I))
             {
-                StudioService.instance.SubscribeMQTT("STOCKER_CRANE");
+                StudioService.Instance.SubscribeMQTT("STOCKER_CRANE");
 
             }
             if(Input.GetKeyDown(KeyCode.U))
             {
-                StudioService.instance.SubscribeMQTT("AGV");
+                StudioService.Instance.SubscribeMQTT("AGV");
             }
             if(Input.GetKeyDown(KeyCode.T))
             {
diff --git a/Assets/TMPFolder/UILinkedList.cs b/Assets/TMPFolder/UILinkedList.cs
index 56196e98..22f16d2c 100644
--- a/Assets/TMPFolder/UILinkedList.cs
+++ b/Assets/TMPFolder/UILinkedList.cs
@@ -26,7 +26,7 @@ namespace Studio
         private void SetItem()
         {
             var apiItem = CreateAccordion();
-            var basedatas = StudioService.instance.apiData;
+            var basedatas = StudioService.Instance.apiData;
             foreach(var data in basedatas)
             {
                 CreateTabButton(data.Key, apiItem.BarList);