diff --git a/README.md b/README.md
index 1dd7f77..f46d48a 100644
--- a/README.md
+++ b/README.md
@@ -538,11 +538,13 @@ vkey=123
 [socks5]
 mode=socks5
 server_port=9004
+multi_account=multi_account.conf
 ```
 项 | 含义
 ---|---
 mode | socks5
 server_port | 在服务端的代理端口
+multi_account | socks5多账号配置文件（可选）
 ##### 私密代理模式
 
 ```ini
diff --git a/bridge/bridge.go b/bridge/bridge.go
index 3f2c3a8..e372908 100755
--- a/bridge/bridge.go
+++ b/bridge/bridge.go
@@ -488,6 +488,7 @@ loop:
 					tl.Password = t.Password
 					tl.LocalPath = t.LocalPath
 					tl.StripPre = t.StripPre
+					tl.MultiAccount = t.MultiAccount
 					if !client.HasTunnel(tl) {
 						if err := file.GetDb().NewTask(tl); err != nil {
 							logs.Notice("Add task error ", err.Error())
diff --git a/conf/multi_account.conf b/conf/multi_account.conf
new file mode 100644
index 0000000..e3cd792
--- /dev/null
+++ b/conf/multi_account.conf
@@ -0,0 +1,2 @@
+# key -> user | value -> pwd 
+npc=npc.pwd
\ No newline at end of file
diff --git a/conf/npc.conf b/conf/npc.conf
index d4a31a8..b3dccdb 100644
--- a/conf/npc.conf
+++ b/conf/npc.conf
@@ -40,6 +40,7 @@ server_port=10000
 [socks5]
 mode=socks5
 server_port=19009
+multi_account=multi_account.conf
 
 [file]
 mode=file
diff --git a/go.sum b/go.sum
index 29de132..d57b283 100644
--- a/go.sum
+++ b/go.sum
@@ -79,4 +79,4 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
\ No newline at end of file
diff --git a/lib/config/config.go b/lib/config/config.go
index c35afb7..89a6bfd 100644
--- a/lib/config/config.go
+++ b/lib/config/config.go
@@ -239,12 +239,37 @@ func dealTunnel(s string) *file.Tunnel {
 			t.LocalPath = item[1]
 		case "strip_pre":
 			t.StripPre = item[1]
+		case "multi_account":
+			t.MultiAccount = &file.MultiAccount{}
+			if b, err := common.ReadAllFromFile(item[1]); err != nil {
+				panic(err)
+			} else {
+				if content, err := common.ParseStr(string(b)); err != nil {
+					panic(err)
+				} else {
+					t.MultiAccount.AccountMap = dealMultiUser(content)
+				}
+			}
 		}
 	}
 	return t
 
 }
 
+func dealMultiUser(s string) map[string]string {
+	multiUserMap := make(map[string]string)
+	for _, v := range splitStr(s) {
+		item := strings.Split(v, "=")
+		if len(item) == 0 {
+			continue
+		} else if len(item) == 1 {
+			item = append(item, "")
+		}
+		multiUserMap[strings.TrimSpace(item[0])] = item[1]
+	}
+	return multiUserMap
+}
+
 func delLocalService(s string) *LocalServer {
 	l := new(LocalServer)
 	for _, v := range splitStr(s) {
diff --git a/lib/file/obj.go b/lib/file/obj.go
index d3a1fbe..15dea37 100644
--- a/lib/file/obj.go
+++ b/lib/file/obj.go
@@ -124,22 +124,23 @@ func (s *Client) HasHost(h *Host) bool {
 }
 
 type Tunnel struct {
-	Id         int
-	Port       int
-	ServerIp   string
-	Mode       string
-	Status     bool
-	RunStatus  bool
-	Client     *Client
-	Ports      string
-	Flow       *Flow
-	Password   string
-	Remark     string
-	TargetAddr string
-	NoStore    bool
-	LocalPath  string
-	StripPre   string
-	Target     *Target
+	Id           int
+	Port         int
+	ServerIp     string
+	Mode         string
+	Status       bool
+	RunStatus    bool
+	Client       *Client
+	Ports        string
+	Flow         *Flow
+	Password     string
+	Remark       string
+	TargetAddr   string
+	NoStore      bool
+	LocalPath    string
+	StripPre     string
+	Target       *Target
+	MultiAccount *MultiAccount
 	Health
 	sync.RWMutex
 }
@@ -184,6 +185,10 @@ type Target struct {
 	sync.RWMutex
 }
 
+type MultiAccount struct {
+	AccountMap map[string]string // multi account and pwd
+}
+
 func (s *Target) GetRandomTarget() (string, error) {
 	if s.TargetArr == nil {
 		s.TargetArr = strings.Split(s.TargetStr, "\n")
diff --git a/server/proxy/socks5.go b/server/proxy/socks5.go
index 2fe72c1..d79be72 100755
--- a/server/proxy/socks5.go
+++ b/server/proxy/socks5.go
@@ -199,7 +199,7 @@ func (s *Sock5ModeServer) handleConn(c net.Conn) {
 		c.Close()
 		return
 	}
-	if s.task.Client.Cnf.U != "" && s.task.Client.Cnf.P != "" {
+	if (s.task.Client.Cnf.U != "" && s.task.Client.Cnf.P != "") || (s.task.MultiAccount != nil && len(s.task.MultiAccount.AccountMap) > 0) {
 		buf[1] = UserPassAuth
 		c.Write(buf)
 		if err := s.Auth(c); err != nil {
@@ -236,7 +236,22 @@ func (s *Sock5ModeServer) Auth(c net.Conn) error {
 	if _, err := io.ReadAtLeast(c, pass, passLen); err != nil {
 		return err
 	}
-	if string(user) == s.task.Client.Cnf.U && string(pass) == s.task.Client.Cnf.P {
+
+	var U, P string
+	if s.task.MultiAccount != nil {
+		// enable multi user auth
+		U = string(user)
+		var ok bool
+		P, ok = s.task.MultiAccount.AccountMap[U]
+		if !ok {
+			return errors.New("验证不通过")
+		}
+	} else {
+		U = s.task.Client.Cnf.U
+		P = s.task.Client.Cnf.P
+	}
+
+	if string(user) == U && string(pass) == P {
 		if _, err := c.Write([]byte{userAuthVersion, authSuccess}); err != nil {
 			return err
 		}