diff --git a/internal/server/tunnel/server.go b/internal/server/tunnel/server.go
index 3e58130..772dfe8 100644
--- a/internal/server/tunnel/server.go
+++ b/internal/server/tunnel/server.go
@@ -50,8 +50,8 @@ func generateClientID() string {
 // Server 隧道服务端
 type Server struct {
 	clientStore    db.ClientStore
-	jsPluginStore  db.JSPluginStore  // JS 插件存储
-	trafficStore   db.TrafficStore   // 流量存储
+	jsPluginStore  db.JSPluginStore // JS 插件存储
+	trafficStore   db.TrafficStore  // 流量存储
 	bindAddr       string
 	bindPort       int
 	token          string
@@ -514,8 +514,8 @@ func (s *Server) acceptProxyConns(cs *ClientSession, ln net.Listener, rule proto
 func (s *Server) acceptProxyServerConns(cs *ClientSession, ln net.Listener, rule protocol.ProxyRule) {
 	dialer := proxy.NewTunnelDialer(cs.Session)
 
-	// 使用内置 proxy 实现
-	proxyServer := proxy.NewServer(rule.Type, dialer)
+	// 使用内置 proxy 实现 (带流量统计)
+	proxyServer := proxy.NewServer(rule.Type, dialer, s.recordTraffic)
 	for {
 		conn, err := ln.Accept()
 		if err != nil {
@@ -963,6 +963,9 @@ func (s *Server) sendUDPPacket(cs *ClientSession, conn *net.UDPConn, clientAddr
 		return
 	}
 
+	// 记录入站流量 (从外部接收的数据)
+	s.recordTraffic(int64(len(packet.Data)), 0)
+
 	// 等待客户端响应
 	respMsg, err := protocol.ReadMessage(stream)
 	if err != nil {
@@ -975,6 +978,8 @@ func (s *Server) sendUDPPacket(cs *ClientSession, conn *net.UDPConn, clientAddr
 			return
 		}
 		conn.WriteToUDP(respPacket.Data, clientAddr)
+		// 记录出站流量 (发送回外部的数据)
+		s.recordTraffic(0, int64(len(respPacket.Data)))
 	}
 }
 
diff --git a/pkg/proxy/http.go b/pkg/proxy/http.go
index b5e550b..4817626 100644
--- a/pkg/proxy/http.go
+++ b/pkg/proxy/http.go
@@ -6,16 +6,19 @@ import (
 	"net"
 	"net/http"
 	"strings"
+
+	"github.com/gotunnel/pkg/relay"
 )
 
 // HTTPServer HTTP 代理服务
 type HTTPServer struct {
-	dialer Dialer
+	dialer  Dialer
+	onStats func(in, out int64) // 流量统计回调
 }
 
 // NewHTTPServer 创建 HTTP 代理服务
-func NewHTTPServer(dialer Dialer) *HTTPServer {
-	return &HTTPServer{dialer: dialer}
+func NewHTTPServer(dialer Dialer, onStats func(in, out int64)) *HTTPServer {
+	return &HTTPServer{dialer: dialer, onStats: onStats}
 }
 
 // HandleConn 处理 HTTP 代理连接
@@ -50,8 +53,8 @@ func (h *HTTPServer) handleConnect(conn net.Conn, req *http.Request) error {
 
 	conn.Write([]byte("HTTP/1.1 200 Connection Established\r\n\r\n"))
 
-	go io.Copy(remote, conn)
-	io.Copy(conn, remote)
+	// 双向转发 (带流量统计)
+	relay.RelayWithStats(conn, remote, h.onStats)
 	return nil
 }
 
@@ -82,7 +85,10 @@ func (h *HTTPServer) handleHTTP(conn net.Conn, req *http.Request, reader *bufio.
 		return err
 	}
 
-	// 转发响应
-	_, err = io.Copy(conn, remote)
+	// 转发响应 (带流量统计)
+	n, err := io.Copy(conn, remote)
+	if h.onStats != nil && n > 0 {
+		h.onStats(0, n) // 响应数据为出站流量
+	}
 	return err
 }
diff --git a/pkg/proxy/server.go b/pkg/proxy/server.go
index 7ec37bc..611bc8d 100644
--- a/pkg/proxy/server.go
+++ b/pkg/proxy/server.go
@@ -14,10 +14,10 @@ type Server struct {
 }
 
 // NewServer 创建代理服务器
-func NewServer(typ string, dialer Dialer) *Server {
+func NewServer(typ string, dialer Dialer, onStats func(in, out int64)) *Server {
 	return &Server{
-		socks5: NewSOCKS5Server(dialer),
-		http:   NewHTTPServer(dialer),
+		socks5: NewSOCKS5Server(dialer, onStats),
+		http:   NewHTTPServer(dialer, onStats),
 		typ:    typ,
 	}
 }
diff --git a/pkg/proxy/socks5.go b/pkg/proxy/socks5.go
index 202ad7b..cc4fa01 100644
--- a/pkg/proxy/socks5.go
+++ b/pkg/proxy/socks5.go
@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"io"
 	"net"
+
+	"github.com/gotunnel/pkg/relay"
 )
 
 const (
@@ -19,7 +21,8 @@ const (
 
 // SOCKS5Server SOCKS5 代理服务
 type SOCKS5Server struct {
-	dialer Dialer
+	dialer  Dialer
+	onStats func(in, out int64) // 流量统计回调
 }
 
 // Dialer 连接拨号器接口
@@ -28,8 +31,8 @@ type Dialer interface {
 }
 
 // NewSOCKS5Server 创建 SOCKS5 服务
-func NewSOCKS5Server(dialer Dialer) *SOCKS5Server {
-	return &SOCKS5Server{dialer: dialer}
+func NewSOCKS5Server(dialer Dialer, onStats func(in, out int64)) *SOCKS5Server {
+	return &SOCKS5Server{dialer: dialer, onStats: onStats}
 }
 
 // HandleConn 处理 SOCKS5 连接
@@ -60,9 +63,8 @@ func (s *SOCKS5Server) HandleConn(conn net.Conn) error {
 		return err
 	}
 
-	// 双向转发
-	go io.Copy(remote, conn)
-	io.Copy(conn, remote)
+	// 双向转发 (带流量统计)
+	relay.RelayWithStats(conn, remote, s.onStats)
 
 	return nil
 }