diff --git a/src/JT808.DotNetty/Codecs/JT808ClientDecoder.cs b/src/JT808.DotNetty/Codecs/JT808ClientDecoder.cs
new file mode 100644
index 0000000..662ebff
--- /dev/null
+++ b/src/JT808.DotNetty/Codecs/JT808ClientDecoder.cs
@@ -0,0 +1,59 @@
+using DotNetty.Buffers;
+using DotNetty.Codecs;
+using DotNetty.Transport.Channels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using JT808.Protocol;
+using JT808.DotNetty.Internal;
+using JT808.DotNetty.Interfaces;
+
+namespace JT808.DotNetty.Codecs
+{
+    /// <summary>
+    /// JT808客户端解码(测试客户端)
+    /// </summary>
+    internal class JT808ClientDecoder : ByteToMessageDecoder
+    {
+        private static readonly ILogger<JT808ClientDecoder> logger=new LoggerFactory().CreateLogger<JT808ClientDecoder>();
+
+        private static readonly JT808AtomicCounterService jT808AtomicCounterService=new JT808AtomicCounterService ();
+        
+        protected override void Decode(IChannelHandlerContext context, IByteBuffer input, List<object> output)
+        {
+            byte[] buffer = new byte[input.Capacity + 2];
+            try
+            {
+                input.ReadBytes(buffer, 1, input.Capacity);
+                buffer[0] = JT808Package.BeginFlag;
+                buffer[input.Capacity + 1] = JT808Package.EndFlag;
+                JT808Package jT808Package = JT808Serializer.Deserialize<JT808Package>(buffer);
+                output.Add(jT808Package);
+                jT808AtomicCounterService.MsgSuccessIncrement();
+                if (logger.IsEnabled(LogLevel.Debug))
+                {
+                    logger.LogDebug("accept package success count<<<" + jT808AtomicCounterService.MsgSuccessCount.ToString());
+                } 
+            }
+            catch (JT808.Protocol.Exceptions.JT808Exception ex)
+            {
+                jT808AtomicCounterService.MsgFailIncrement();
+                if (logger.IsEnabled(LogLevel.Error))
+                {
+                    logger.LogError("accept package fail count<<<" + jT808AtomicCounterService.MsgFailCount.ToString());
+                    logger.LogError(ex, "accept msg<<<" + buffer);
+                }
+            }
+            catch (Exception ex)
+            {
+                jT808AtomicCounterService.MsgFailIncrement();
+                if (logger.IsEnabled(LogLevel.Error))
+                {
+                    logger.LogError("accept package fail count<<<" + jT808AtomicCounterService.MsgFailCount.ToString());
+                    logger.LogError(ex, "accept msg<<<" + buffer);
+                }
+            }
+        }
+    }
+}
diff --git a/src/JT808.DotNetty/JT808SimpleTcpClient.cs b/src/JT808.DotNetty/JT808SimpleTcpClient.cs
new file mode 100644
index 0000000..fcadd98
--- /dev/null
+++ b/src/JT808.DotNetty/JT808SimpleTcpClient.cs
@@ -0,0 +1,53 @@
+using DotNetty.Buffers;
+using DotNetty.Codecs;
+using DotNetty.Transport.Bootstrapping;
+using DotNetty.Transport.Channels;
+using DotNetty.Transport.Channels.Sockets;
+using DotNetty.Transport.Libuv;
+using JT808.DotNetty.Codecs;
+using JT808.DotNetty.Handlers;
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JT808.DotNetty
+{
+    public class JT808SimpleTcpClient
+    {
+        private Bootstrap cb;
+
+        private MultithreadEventLoopGroup clientGroup;
+
+        private IChannel clientChannel;
+
+        public JT808SimpleTcpClient(EndPoint remoteAddress)
+        {
+            clientGroup = new MultithreadEventLoopGroup(1);
+            cb = new Bootstrap()
+                .Group(clientGroup)
+                .Channel<TcpSocketChannel>()
+                .Option(ChannelOption.TcpNodelay, true)
+                .Handler(new ActionChannelInitializer<TcpSocketChannel>(channel =>
+                {
+                    channel.Pipeline.AddLast("jt808Buffer", new DelimiterBasedFrameDecoder(int.MaxValue,
+                        Unpooled.CopiedBuffer(new byte[] { JT808.Protocol.JT808Package.BeginFlag }),
+                        Unpooled.CopiedBuffer(new byte[] { JT808.Protocol.JT808Package.EndFlag })));
+                    channel.Pipeline.AddLast("jt808Decode", new JT808ClientDecoder());
+                }));
+            clientChannel = cb.ConnectAsync(remoteAddress).Result;
+        }
+
+        public void WriteAsync(byte[] data)
+        {
+            clientChannel.WriteAndFlushAsync(Unpooled.WrappedBuffer(data));
+        }
+
+        public void Down()
+        {
+            this.clientChannel?.CloseAsync().Wait();
+            Task.WaitAll(this.clientGroup.ShutdownGracefullyAsync(TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(1)));
+        }
+    }
+}