diff --git a/Entity/Constant/StationParamConst.cs b/Entity/Constant/StationParamConst.cs
index bdd1f9b..342f75f 100644
--- a/Entity/Constant/StationParamConst.cs
+++ b/Entity/Constant/StationParamConst.cs
@@ -64,7 +64,7 @@ public class StationParamConst
     /// </summary>
     public static readonly string Sevstatus = "Station.Sevstatus";
 
-  
+
 
     /// <summary>
     /// 投放时间
@@ -183,11 +183,11 @@ public class StationParamConst
     public static readonly string SetLightDayStartTime = "Station.LightDayStartTime";
     public static readonly string SetLightDayEndTime = "Station.LightDayEndTime";
 
-    
-    
-    
+
+
+
     #endregion 系统管理-基础设置
-    
+
     //选包策略中最后结束充电时间需要>此值
     public static readonly string SwapFinishChargeTime = "Station.SwapFinishChargeTime";
 
@@ -210,6 +210,7 @@ public class StationParamConst
 
     #region cloud param
 
+    public static readonly string CloudServerMqttVersion = "Cloud.CloudServerMqttVersion";
     public static readonly string CloudServerIp = "Cloud.CloudServerIp";
     public static readonly string CloudServerPort = "Cloud.CloudServerPort";
     public static readonly string CloudClientId = "Cloud.CloudClientId";
@@ -219,4 +220,4 @@ public class StationParamConst
     public static readonly string CloudPubTopic = "Cloud.CloudPubTopic";
 
     #endregion
-}
\ No newline at end of file
+}
diff --git a/Service/Cloud/Client/CloudClient.cs b/Service/Cloud/Client/CloudClient.cs
index d805b61..f9bc1eb 100644
--- a/Service/Cloud/Client/CloudClient.cs
+++ b/Service/Cloud/Client/CloudClient.cs
@@ -31,7 +31,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
     IMqttClientDisconnectedHandler
 {
     private static readonly ILog Log = LogManager.GetLogger(typeof(CloudClient));
-    
+
     public SwapOrderRepository SwapOrderRepository { get; set;}
 
     #region tcp param
@@ -43,7 +43,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
     public string? Password { get; set; }
     public int KeepalivePeriod { get; set; } = 3000;
     public int Timeout { get; set; } = 60;
-    public string Version { get; set; } = "5.0.16";
+    public string MqttVersion { get; set; } = "4.0.0";
     public bool IsCleanSession { get; set; } = false;
 
     #endregion
@@ -71,7 +71,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
     public CarCanStart? CarCanStart { get; set; }
 
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public MsgPair<VehicleCertification, VehicleCertificationResp> CarAuth { get; set; } = new();
     public MsgPair<ChannelStatusReporting, ChannelStatusReportingResp> ChannelStatus { get; set; } = new();
@@ -225,7 +225,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
             MqttTopicFilter topicFilter = new MqttTopicFilter
             {
                 Topic = str,
-                QualityOfServiceLevel = MqttQualityOfServiceLevel.AtMostOnce
+                QualityOfServiceLevel = MqttQualityOfServiceLevel.AtLeastOnce
             };
             list.Add(topicFilter);
         }
@@ -272,7 +272,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
             MqttClient.PublishAsync(appMsg);
             MqttClient.PublishAsync(appMsg);
         }
-        
+
     }
 
     private string SignData<T>(Model<T> model) where T : ICmd
@@ -366,7 +366,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
 
         builder.WithKeepAlivePeriod(TimeSpan.FromSeconds(KeepalivePeriod))
             .WithCommunicationTimeout(TimeSpan.FromSeconds(Timeout));
-        switch (Version)
+        switch (MqttVersion)
         {
             case "3.1.0":
                 builder.WithProtocolVersion(MqttProtocolVersion.V310);
@@ -397,7 +397,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
         this.Publish(vehicleCertification);
         return CarAuth.GetResp(timeSpan);
     }
-    
+
     /// <summary>
     /// 换电站通道状态上报
     /// </summary>
@@ -499,8 +499,8 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
         this.ChargeRecordUpLoad.Req = req;
         this.Publish(req);
         return ChargeRecordUpLoad.GetResp(timeSpan);
-    } 
-    
+    }
+
     public ChargeDevDataInfoRes? SendChargeDevDataInfo(ChargeDevDataInfo req, TimeSpan? timeSpan = null)
     {
         this.ChargeDevDataInfo.Req = req;
@@ -512,7 +512,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
     #region business func
 
     /// <summary>
-    /// 
+    ///
     /// </summary>
     /// <param name="chargeOrder"></param>
     /// <param name="op">1： 自动； 2： 人工手动</param>
@@ -534,7 +534,7 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
             ssoc = chargeOrder.StartSoc ?? 0,
             esoc = lastChargeOrder.StopSoc ?? 0,
             //ssoe = chargeOrder.soe
-            //esoe 
+            //esoe
             dcce =0,
             acce =0,
             tp = 0,
@@ -557,10 +557,10 @@ public class CloudClient : IMqttClientConnectedHandler, IMqttApplicationMessageR
             req.vp   += Convert.ToSingle(order.ValleyElecCount);
             req.ct   += ((order.EndTime ?? DateTime.Now).Subtract(order.StartTime ?? DateTime.Now)).Minutes;
         }
-        
+
         this.SendChargeRecordUpLoad(req);
         return true;
     }
 
     #endregion
-}
\ No newline at end of file
+}
diff --git a/Service/Cloud/Client/CloudClientMgr.cs b/Service/Cloud/Client/CloudClientMgr.cs
index 56c6e61..f162388 100644
--- a/Service/Cloud/Client/CloudClientMgr.cs
+++ b/Service/Cloud/Client/CloudClientMgr.cs
@@ -1,13 +1,9 @@
 using Autofac;
-using Entity.DbModel.Station;
 using HybirdFrameworkCore.Autofac;
 using HybirdFrameworkCore.Autofac.Attribute;
 using HybirdFrameworkCore.Redis;
 using log4net;
-using Newtonsoft.Json;
 using Repository.Station;
-using Service.Cloud.Msg;
-using Service.Cloud.Msg.Host.Req;
 using Service.Init;
 
 namespace Service.Cloud.Client;
@@ -22,6 +18,7 @@ public class CloudClientMgr
     {
         CloudClient = AppInfo.Container.Resolve<CloudClient>();
 
+        CloudClient.MqttVersion = StaticStationInfo.CloudServerMqttVersion;
         CloudClient.ServerIp = StaticStationInfo.CloudServerIp;
         CloudClient.ServerPort = StaticStationInfo.CloudServerPort;
         CloudClient.ClientId = StaticStationInfo.CloudClientId;
@@ -93,4 +90,4 @@ public class CloudClientMgr
             }
         });*/
     }
-}
\ No newline at end of file
+}
diff --git a/Service/Init/StaticStationInfo.cs b/Service/Init/StaticStationInfo.cs
index e8adfbb..3642b80 100644
--- a/Service/Init/StaticStationInfo.cs
+++ b/Service/Init/StaticStationInfo.cs
@@ -1,7 +1,6 @@
 using Autofac;
 using Entity.Constant;
 using HybirdFrameworkCore.Autofac;
-using Service.Station;
 using Service.System;
 
 namespace Service.Init;
@@ -135,17 +134,17 @@ public class StaticStationInfo
     {
         get
         {
-            string port = Resolve(StationParamConst.CloudServerPort);
-            if (string.IsNullOrWhiteSpace(port))
-            {
-                return 33000;
-            }
-
+            string port = Resolve(StationParamConst.CloudServerPort, "33000");
             return int.Parse(port);
         }
         set => Set(StationParamConst.CloudServerPort, value);
     }
 
+    public static string CloudServerMqttVersion
+    {
+        get => Resolve(StationParamConst.CloudServerMqttVersion, "4.0.0");
+        set => Set(StationParamConst.CloudServerMqttVersion, value);
+    }
     public static string CloudClientId
     {
         get => Resolve(StationParamConst.CloudClientId);
@@ -182,7 +181,7 @@ public class StaticStationInfo
 
     private static SysConfigService _sysConfigService;
 
-    private static string Resolve(string key)
+    private static string Resolve(string key, string? value = default)
     {
         if (_sysConfigService == null)
         {
@@ -195,7 +194,7 @@ public class StaticStationInfo
             return s;
         }
 
-        return "";
+        return value;
     }
 
     private static void Set(string key, object value)
@@ -209,4 +208,4 @@ public class StaticStationInfo
     }
 
     #endregion
-}
\ No newline at end of file
+}