diff --git a/src/main/java/io/github/yezhihao/netmc/codec/MessageEncoderWrapper.java b/src/main/java/io/github/yezhihao/netmc/codec/MessageEncoderWrapper.java
index d1bebab..38c133b 100644
--- a/src/main/java/io/github/yezhihao/netmc/codec/MessageEncoderWrapper.java
+++ b/src/main/java/io/github/yezhihao/netmc/codec/MessageEncoderWrapper.java
@@ -31,7 +31,10 @@ public class MessageEncoderWrapper extends ChannelOutboundHandlerAdapter {
     public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) {
         ByteBuf buf = null;
         try {
-            buf = encoder.encode(msg);
+            if (msg instanceof ByteBuf)
+                buf = (ByteBuf) msg;
+            else
+                buf = encoder.encode(msg);
             if (log.isInfoEnabled())
                 log.info("<<<<<原始报文[ip={}],hex={}", ctx.channel().remoteAddress(), ByteBufUtil.hexDump(buf));