diff --git a/src/GBNewEnergy.Protocol.Test/NEPackageTest.cs b/src/GBNewEnergy.Protocol.Test/NEPackageTest.cs
index a75962e..6e7997b 100644
--- a/src/GBNewEnergy.Protocol.Test/NEPackageTest.cs
+++ b/src/GBNewEnergy.Protocol.Test/NEPackageTest.cs
@@ -16,6 +16,7 @@ namespace GBNewEnergy.Protocol.Test
         {
 
         };
+
         #region 车辆登入
         [Fact]
         public void NELoginUpStreamConstructor4_1()
@@ -70,7 +71,7 @@ namespace GBNewEnergy.Protocol.Test
         }
         #endregion
 
-        #region 车辆登出(依赖车辆登录的流水号所有必须先进行登录产生流水号)
+        #region 车辆登出(依赖车辆登入的流水号所有必须先进行登入产生流水号)
 
         [Fact]
         public void NELogoutUpStream1_1()
@@ -155,5 +156,74 @@ namespace GBNewEnergy.Protocol.Test
 
         #endregion
 
+        #region 平台登入
+
+        [Fact]
+        public void NEPlatformLogin1_1()
+        {
+            NEPlatformLoginProperty nEPlatformLoginProperty = new NEPlatformLoginProperty
+            {
+                EncryptMethod = NEEncryptMethod.None,
+                Password = "123456",
+                UserName = "smallchi",
+            };
+            NEPlatformLoginUpStream nEPlatformLoginUpStream = new NEPlatformLoginUpStream(nEPlatformLoginProperty, NEGlobalConfigs);
+
+            INEProperties nEPackageProperty = new NEPackageProperty
+            {
+                Bodies = nEPlatformLoginUpStream,
+                MsgId = Enums.NEMsgId.platformlogin,
+                AskId = Enums.NEAskId.cmd,
+                VIN = "LGHC4V1D3HE202652"
+            };
+            NEPackage nEPackage = new NEPackage(nEPackageProperty, NEGlobalConfigs);
+            string headerHex = nEPackage.Header.ToHexString();
+            string bodiesHex = nEPackage.Bodies.Buffer.ToHexString();
+            string packageHex = nEPackage.Buffer.ToHexString();
+        }
+
+        #endregion
+
+        #region 平台登出(依赖平台登出的流水号所有必须先进行登入产生流水号)
+
+        [Fact]
+        public void NEPlatformLogin2_1()
+        {
+            NEPlatformLoginProperty nEPlatformLoginProperty = new NEPlatformLoginProperty
+            {
+                EncryptMethod = NEEncryptMethod.None,
+                Password = "123456",
+                UserName = "smallchi",
+            };
+            NEPlatformLoginUpStream nEPlatformLoginUpStream = new NEPlatformLoginUpStream(nEPlatformLoginProperty, NEGlobalConfigs);
+            INEProperties nEPackageProperty = new NEPackageProperty
+            {
+                Bodies = nEPlatformLoginUpStream,
+                MsgId = Enums.NEMsgId.platformlogin,
+                AskId = Enums.NEAskId.cmd,
+                VIN = "LGHC4V1D3HE202652"
+            };
+            NEPackage nEPackage = new NEPackage(nEPackageProperty, NEGlobalConfigs);
+
+            NEPlatformLogoutProperty nEPlatformLogoutProperty = new NEPlatformLogoutProperty
+            {
+                UserName = "smallchi",
+            };
+            NEPlatformLoginUpStream nEPlatformLogoutUpStream = new NEPlatformLoginUpStream(nEPlatformLoginProperty, NEGlobalConfigs);
+            INEProperties logoutNEPackageProperty = new NEPackageProperty
+            {
+                Bodies = nEPlatformLogoutUpStream,
+                MsgId = Enums.NEMsgId.platformlogout,
+                AskId = Enums.NEAskId.cmd,
+                VIN = "LGHC4V1D3HE202652"
+            };
+            NEPackage loginNEPackage = new NEPackage(logoutNEPackageProperty, NEGlobalConfigs);
+            string headerHex = loginNEPackage.Header.ToHexString();
+            string bodiesHex = loginNEPackage.Bodies.Buffer.ToHexString();
+            string packageHex = loginNEPackage.Buffer.ToHexString();
+        }
+
+
+        #endregion
     }
 }
diff --git a/src/GBNewEnergy.Protocol/Enums/NEMsgId.cs b/src/GBNewEnergy.Protocol/Enums/NEMsgId.cs
index 60eb234..b4aaa1b 100644
--- a/src/GBNewEnergy.Protocol/Enums/NEMsgId.cs
+++ b/src/GBNewEnergy.Protocol/Enums/NEMsgId.cs
@@ -18,17 +18,25 @@ namespace GBNewEnergy.Protocol.Enums
         /// </summary>
         uploadim = 0x02,
         /// <summary>
-        /// 心跳
-        /// </summary>
-        heartbeat = 0x03,
-        /// <summary>
         /// 补传信息上传
         /// </summary>
-        uploadsup = 0x04,
+        uploadsup = 0x03,
         /// <summary>
         /// 车辆登出
         /// </summary>
-        loginout = 0x05,
+        loginout = 0x04,
+        /// <summary>
+        /// 平台登入
+        /// </summary>
+        platformlogin = 0x05,
+        /// <summary>
+        /// 平台登出
+        /// </summary>
+        platformlogout = 0x06,
+        /// <summary>
+        /// 心跳
+        /// </summary>
+        heartbeat = 0x07,
         /// <summary>
         /// 终端校时
         /// </summary>
diff --git a/src/GBNewEnergy.Protocol/Extensions/NEExtensions.cs b/src/GBNewEnergy.Protocol/Extensions/NEExtensions.cs
index aba558e..2dc7bd3 100644
--- a/src/GBNewEnergy.Protocol/Extensions/NEExtensions.cs
+++ b/src/GBNewEnergy.Protocol/Extensions/NEExtensions.cs
@@ -82,6 +82,11 @@ namespace GBNewEnergy.Protocol.Extensions
             Array.Copy(bytes, 0, write, offset, len);
         }
 
+        public static void WriteLittle(this byte[] write, byte bit, int offset)
+        {
+            write[offset] = bit;
+        }
+
         public static void WriteLittle(this byte[] write, DateTime date, int offset,int len)
         {
             write[offset++] = (byte)(date.Year - DateLimitYear);
diff --git a/src/GBNewEnergy.Protocol/NEBodies.cs b/src/GBNewEnergy.Protocol/NEBodies.cs
index 7c48638..b2a3ff2 100644
--- a/src/GBNewEnergy.Protocol/NEBodies.cs
+++ b/src/GBNewEnergy.Protocol/NEBodies.cs
@@ -8,14 +8,21 @@ namespace GBNewEnergy.Protocol
     public abstract class NEBodies : NEBufferedEntityBase
     {
         /// <summary>
-        /// VIN - 登录流水号,过期时间（每天置1）
+        /// VIN - 登入流水号,过期时间（每天置1）
         /// 车载终端登入一次，登入流水号自动加1，从1开始循环累加，最大值为65531，循环周期为天
         /// </summary>
         protected static readonly ConcurrentDictionary<string, LoginInfo> LoginNumDict;
 
+        /// <summary>
+        /// 平台登入 登录流水号,过期时间（每天置1）
+        /// 下级平台登入一次，登入流水号自动加1，从1开始循环累加，最大值为65531，循环周期为天
+        /// </summary>
+        protected static readonly ConcurrentDictionary<string, PlatformLoginInfo> PlatformLoginNumDict;
+
         static NEBodies()
         {
             LoginNumDict = new ConcurrentDictionary<string, LoginInfo>();
+            PlatformLoginNumDict = new ConcurrentDictionary<string, PlatformLoginInfo>();
         }
 
         /// <summary>
@@ -39,5 +46,11 @@ namespace GBNewEnergy.Protocol
            public ushort LoginNum { get; set; }
            public DateTime ExpirationTime { get; set; }
         }
+
+        protected class PlatformLoginInfo
+        {
+            public ushort LoginNum { get; set; }
+            public DateTime ExpirationTime { get; set; }
+        }
     }
 }
diff --git a/src/GBNewEnergy.Protocol/NEProperties/NEPlatformLoginProperty.cs b/src/GBNewEnergy.Protocol/NEProperties/NEPlatformLoginProperty.cs
new file mode 100644
index 0000000..7ba7265
--- /dev/null
+++ b/src/GBNewEnergy.Protocol/NEProperties/NEPlatformLoginProperty.cs
@@ -0,0 +1,27 @@
+using GBNewEnergy.Protocol.Enums;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace GBNewEnergy.Protocol.NEProperties
+{
+    public class NEPlatformLoginProperty : INEProperties
+    {
+        [Obsolete("平台登入无用字段")]
+        public string VIN { get ; set; }
+        /// <summary>
+        /// 平台用户名
+        /// </summary>
+        public string UserName { get; set; }
+
+        /// <summary>
+        /// 加密规则
+        /// </summary>
+        public NEEncryptMethod EncryptMethod { get; set; }
+
+        /// <summary>
+        /// 平台密码
+        /// </summary>
+        public string Password { get; set; }
+    }
+}
diff --git a/src/GBNewEnergy.Protocol/NEProperties/NEPlatformLogoutProperty.cs b/src/GBNewEnergy.Protocol/NEProperties/NEPlatformLogoutProperty.cs
new file mode 100644
index 0000000..b319ab7
--- /dev/null
+++ b/src/GBNewEnergy.Protocol/NEProperties/NEPlatformLogoutProperty.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace GBNewEnergy.Protocol.NEProperties
+{
+    public class NEPlatformLogoutProperty : INEProperties
+    {
+        [Obsolete("平台登入无用字段")]
+        public string VIN { get; set; }
+        /// <summary>
+        /// 平台用户名
+        /// </summary>
+        public string UserName { get; set; }
+    }
+}
diff --git a/src/GBNewEnergy.Protocol/UpStream/NEPlatformLoginUpStream.cs b/src/GBNewEnergy.Protocol/UpStream/NEPlatformLoginUpStream.cs
new file mode 100644
index 0000000..355ae3d
--- /dev/null
+++ b/src/GBNewEnergy.Protocol/UpStream/NEPlatformLoginUpStream.cs
@@ -0,0 +1,88 @@
+using GBNewEnergy.Protocol.Enums;
+using GBNewEnergy.Protocol.Extensions;
+using GBNewEnergy.Protocol.NEProperties;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace GBNewEnergy.Protocol.UpStream
+{
+    /// <summary>
+    /// 平台登入
+    /// </summary>
+    public class NEPlatformLoginUpStream : NEBodies
+    {
+        public NEPlatformLoginUpStream(byte[] buffer, NEGlobalConfigs nEConfigs) : base(buffer, nEConfigs)
+        {
+        }
+
+        public NEPlatformLoginUpStream(INEProperties nEProperties, NEGlobalConfigs nEConfigs) : base(nEProperties, nEConfigs)
+        {
+        }
+
+        /// <summary>
+        /// 平台用户名
+        /// </summary>
+        public string UserName { get; set; }
+
+        /// <summary>
+        /// 加密规则
+        /// </summary>
+        public NEEncryptMethod EncryptMethod { get; set; }
+
+        /// <summary>
+        /// 平台密码
+        /// </summary>
+        public string Password { get; set; }
+
+        protected override void InitializeProperties(INEProperties nEProperties)
+        {
+            NEPlatformLoginProperty nEPlatformLoginProperty = (NEPlatformLoginProperty)nEProperties;
+            if (PlatformLoginNumDict.ContainsKey(nEPlatformLoginProperty.UserName))
+            {
+                PlatformLoginInfo temp;
+                if (PlatformLoginNumDict.TryGetValue(nEPlatformLoginProperty.UserName, out temp))
+                {
+                    // 不等于当天
+                    if (temp.ExpirationTime != DateTime.Now.Date)
+                    {
+                        LoginNum = 1;
+                        PlatformLoginNumDict.TryUpdate(nEPlatformLoginProperty.UserName, new PlatformLoginInfo { LoginNum = LoginNum, ExpirationTime = DateTime.Now.Date }, temp);
+                    }
+                    else
+                    {// 自增1 更新字典
+                        LoginNum = temp.LoginNum++;
+                        PlatformLoginNumDict.TryUpdate(nEPlatformLoginProperty.UserName, new PlatformLoginInfo { LoginNum = LoginNum, ExpirationTime = DateTime.Now.Date }, temp);
+                    }
+                }
+            }
+            else
+            {
+                LoginNum = 1;
+                PlatformLoginNumDict.TryAdd(nEPlatformLoginProperty.UserName, new PlatformLoginInfo { LoginNum = LoginNum, ExpirationTime = DateTime.Now.Date });
+            }
+            UserName = nEPlatformLoginProperty.UserName;
+            EncryptMethod = nEPlatformLoginProperty.EncryptMethod;
+            Password = nEPlatformLoginProperty.Password;
+        }
+
+        protected override void InitializePropertiesFromBuffer()
+        {
+            CurrentDateTime = Buffer.ReadDateTimeLittle(0, 6);
+            LoginNum = Buffer.ReadUShortH2LLittle(6, 2);
+            UserName = Buffer.ReadStringLittle(6, 12);
+            Password = Buffer.ReadStringLittle(12, 20);
+            EncryptMethod= (NEEncryptMethod)Buffer[21];
+        }
+
+        protected override void ToBuffer()
+        {
+            Buffer = new byte[6+2+12+20+1];
+            Buffer.WriteLittle(CurrentDateTime, 0, 6);
+            Buffer.WriteLittle(LoginNum, 6, 2);
+            Buffer.WriteLittle(UserName, 12);
+            Buffer.WriteLittle(Password, 20);
+            Buffer.WriteLittle((byte)EncryptMethod, 21);
+        }
+    }
+}
diff --git a/src/GBNewEnergy.Protocol/UpStream/NEPlatformLogoutUpStream.cs b/src/GBNewEnergy.Protocol/UpStream/NEPlatformLogoutUpStream.cs
new file mode 100644
index 0000000..4323a91
--- /dev/null
+++ b/src/GBNewEnergy.Protocol/UpStream/NEPlatformLogoutUpStream.cs
@@ -0,0 +1,47 @@
+using GBNewEnergy.Protocol.Exceptions;
+using GBNewEnergy.Protocol.Extensions;
+using GBNewEnergy.Protocol.NEProperties;
+
+namespace GBNewEnergy.Protocol.UpStream
+{
+    /// <summary>
+    /// 平台登出
+    /// </summary>
+    public class NEPlatformLogoutUpStream : NEBodies
+    {
+        public NEPlatformLogoutUpStream(INEProperties nEProperties, NEGlobalConfigs nEConfigs) : base(nEProperties, nEConfigs)
+        {
+        }
+
+        public NEPlatformLogoutUpStream(byte[] buffer, NEGlobalConfigs nEConfigs) : base(buffer, nEConfigs)
+        {
+        }
+
+        protected override void InitializeProperties(INEProperties nEProperties)
+        {
+            NEPlatformLogoutProperty nEPlatformLogoutProperty = (NEPlatformLogoutProperty)nEProperties;
+            PlatformLoginInfo temp;
+            if (PlatformLoginNumDict.TryGetValue(nEPlatformLogoutProperty.UserName, out temp))
+            {
+                LoginNum = temp.LoginNum;
+            }
+            else
+            {
+                throw new NEException(Enums.NEErrorCode.LoginSerialNoError, "Must Dependency NEPlatformLoginUpStream Class.");
+            }
+        }
+
+        protected override void InitializePropertiesFromBuffer()
+        {
+            CurrentDateTime = Buffer.ReadDateTimeLittle(0, 6);
+            LoginNum = Buffer.ReadUShortH2LLittle(6, 2);
+        }
+
+        protected override void ToBuffer()
+        {
+            Buffer = new byte[8];
+            Buffer.WriteLittle(CurrentDateTime, 0, 6);
+            Buffer.WriteLittle(LoginNum, 6, 2);
+        }
+    }
+}