diff --git a/Assets/StreamingAssets.meta b/Assets/StreamingAssets.meta
new file mode 100644
index 00000000..1b72cd6d
--- /dev/null
+++ b/Assets/StreamingAssets.meta
@@ -0,0 +1,8 @@
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diff --git a/Assets/StreamingAssets/MQTTConfig.json b/Assets/StreamingAssets/MQTTConfig.json
new file mode 100644
index 00000000..3cf453e9
--- /dev/null
+++ b/Assets/StreamingAssets/MQTTConfig.json
@@ -0,0 +1,9 @@
+{
+	"configs": [
+		{
+			"name": "main",
+			"host": "220.90.135.42",
+			"port": 3018
+		}
+	]
+}
\ No newline at end of file
diff --git a/Assets/StreamingAssets/MQTTConfig.json.meta b/Assets/StreamingAssets/MQTTConfig.json.meta
new file mode 100644
index 00000000..4683ddc7
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+++ b/Assets/StreamingAssets/MQTTConfig.json.meta
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+TextScriptImporter:
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+  userData: 
+  assetBundleName: 
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diff --git a/Assets/WorkSpace.meta b/Assets/WorkSpace.meta
new file mode 100644
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--- /dev/null
+++ b/Assets/WorkSpace.meta
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diff --git a/Assets/WorkSpace/LH.meta b/Assets/WorkSpace/LH.meta
new file mode 100644
index 00000000..7d5bbf00
--- /dev/null
+++ b/Assets/WorkSpace/LH.meta
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diff --git a/Assets/WorkSpace/LH/MQTTConfig.cs b/Assets/WorkSpace/LH/MQTTConfig.cs
new file mode 100644
index 00000000..35ed63b6
--- /dev/null
+++ b/Assets/WorkSpace/LH/MQTTConfig.cs
@@ -0,0 +1,17 @@
+using UnityEngine;
+using System.Collections.Generic;
+
+namespace Octopus.Simulator.Networks
+{
+    public class MQTTConfigList
+    {
+        public List<MQTTConfig> configs=new List<MQTTConfig>();
+    }
+
+    public class MQTTConfig
+    {
+        public string name;
+        public string host;
+        public int port;
+    }
+}
\ No newline at end of file
diff --git a/Assets/WorkSpace/LH/MQTTConfig.cs.meta b/Assets/WorkSpace/LH/MQTTConfig.cs.meta
new file mode 100644
index 00000000..0fe804c5
--- /dev/null
+++ b/Assets/WorkSpace/LH/MQTTConfig.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: c3704dcef3ce96e41b03657cf842f32e
\ No newline at end of file
diff --git a/Assets/WorkSpace/LH/MQTTManager.cs b/Assets/WorkSpace/LH/MQTTManager.cs
new file mode 100644
index 00000000..ec47a3d8
--- /dev/null
+++ b/Assets/WorkSpace/LH/MQTTManager.cs
@@ -0,0 +1,124 @@
+using UnityEngine;
+using Best.MQTT;
+using Best.MQTT.Packets;
+using Best.MQTT.Packets.Builders;
+using Newtonsoft.Json;
+using System.IO;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Collections;
+
+namespace Octopus.Simulator.Networks
+{
+    public class MQTTManager : MonoBehaviour
+    {
+        public static MQTTManager mqttManager;
+
+        public Dictionary<string, MQTTClient> clientTable = new Dictionary<string, MQTTClient>();
+
+        [SerializeField]
+        string MQTTpath = "";
+        MQTTClient client;
+
+        public event Action onConnectedEvent;
+        public event Action<DisconnectReasonCodes, string> onDisconnectedEvent;
+        public event Action<string, string> onMessageReceived;
+        public event Action<string> onErrorEvent;
+        public event Action onCompletedTimerEvent;
+        // Start is called once before the first execution of Update after the MonoBehaviour is created
+        void Awake()
+        {
+            mqttManager = this;
+            SetMqttConfig();
+        }
+
+        private void SetMqttConfig()
+        {
+            string path = Application.streamingAssetsPath + MQTTpath;
+            string json;
+            using (StreamReader reader = new StreamReader(path))
+            {
+                json = reader.ReadToEnd();
+            }
+            MQTTConfigList ConfigList = JsonConvert.DeserializeObject<MQTTConfigList>(json);
+            foreach (var config in ConfigList.configs)
+            {
+                string clientName = config.name;
+                string host = config.host;
+                int port = config.port;
+
+                Connect(clientName, host,port);
+            }
+        }
+
+        public void SubscriptionTopic(MQTTClient client, string topic)
+        {
+                client.AddTopicAlias(topic);
+
+                client.CreateSubscriptionBuilder(topic)
+                      .WithMessageCallback(OnMessage)
+                      .WithMaximumQoS(QoSLevels.ExactlyOnceDelivery)
+                      .BeginSubscribe();
+
+        }
+
+        public void Connect(string clientName, string host,int port)
+        {
+            client = new MQTTClientBuilder()
+                .WithOptions(new ConnectionOptionsBuilder().WithTCP(host, port))
+                .WithEventHandler(client=>OnConnected(client,clientName))
+                .WithEventHandler(OnStateChange)
+                .WithEventHandler(OnDisconnected)
+                .WithEventHandler(OnError)
+                .CreateClient();
+
+            client.BeginConnect(ConnectPacketBuilderCallback);
+        }
+
+        public event Action<MQTTClient> onConnected;
+        private void OnConnected(MQTTClient client,string clientName)
+        {
+            Debug.Log("connect");
+            clientTable.Add(clientName, client);
+            onConnected?.Invoke(client);
+            SubscriptionTopic(client, "simulation/435faabb-6183-4690-a81f-027dd96d5827/#");
+        }
+
+        private ConnectPacketBuilder ConnectPacketBuilderCallback(MQTTClient client, ConnectPacketBuilder builder)
+        {
+            return builder;
+        }
+
+        private void OnError(MQTTClient client, string error)
+        {
+            Debug.Log($"OnError! :{error}");
+        }
+
+        private void OnMessage(MQTTClient client, SubscriptionTopic topic, string topicName, ApplicationMessage message)
+        {
+            var payload = Encoding.UTF8.GetString(message.Payload.Data, message.Payload.Offset, message.Payload.Count);
+            Debug.Log(payload);
+            onMessageReceived?.Invoke(topicName, payload);
+        }
+
+        private void OnDisconnected(MQTTClient client, DisconnectReasonCodes reasonCode, string reasonMessage)
+        {
+            Debug.Log(reasonMessage);
+            //throw new NotImplementedException();
+        }
+
+        private void OnStateChange(MQTTClient client, ClientStates oldState, ClientStates newState)
+        {
+            //throw new NotImplementedException();
+        }
+
+        void OnDestroy()
+        {
+            client?.CreateDisconnectPacketBuilder()
+                .WithReasonCode(DisconnectReasonCodes.NormalDisconnection)
+                //.WithReasonString("Bye")
+                .BeginDisconnect();
+        }
+    }
+}
diff --git a/Assets/WorkSpace/LH/MQTTManager.cs.meta b/Assets/WorkSpace/LH/MQTTManager.cs.meta
new file mode 100644
index 00000000..e4fa9b85
--- /dev/null
+++ b/Assets/WorkSpace/LH/MQTTManager.cs.meta
@@ -0,0 +1,2 @@
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+guid: 6c81b4b1ce2fb4345950d24862ca380c
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