diff --git a/dubbo-remoting/dubbo-remoting-netty4/src/main/java/com/alibaba/dubbo/remoting/transport/netty4/NettyTransporter.java b/dubbo-remoting/dubbo-remoting-netty4/src/main/java/com/alibaba/dubbo/remoting/transport/netty4/NettyTransporter.java
index 4a4ac209bd3f0faca9871428ff8391da17754bc5..8c094c554b177a31074decf9c0080918ddf29113 100644
--- a/dubbo-remoting/dubbo-remoting-netty4/src/main/java/com/alibaba/dubbo/remoting/transport/netty4/NettyTransporter.java
+++ b/dubbo-remoting/dubbo-remoting-netty4/src/main/java/com/alibaba/dubbo/remoting/transport/netty4/NettyTransporter.java
@@ -23,8 +23,14 @@ import com.alibaba.dubbo.remoting.RemotingException;
 import com.alibaba.dubbo.remoting.Server;
 import com.alibaba.dubbo.remoting.Transporter;
 
+/**
+ * 基于 Netty4 的网络传输实现类
+ */
 public class NettyTransporter implements Transporter {
 
+    /**
+     * 拓展名
+     */
     public static final String NAME = "netty4";
 
     public Server bind(URL url, ChannelHandler listener) throws RemotingException {
@@ -35,4 +41,4 @@ public class NettyTransporter implements Transporter {
         return new NettyClient(url, listener);
     }
 
-}
+}
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