diff --git a/proxy/shadowsocks/config.go b/proxy/shadowsocks/config.go
index b6ee555fa..8718cc0bb 100644
--- a/proxy/shadowsocks/config.go
+++ b/proxy/shadowsocks/config.go
@@ -8,15 +8,15 @@ import (
 	"v2ray.com/core/common/protocol"
 )
 
-func (this *Config) GetCipher() Cipher {
-	switch this.Cipher {
-	case Config_AES_128_CFB:
+func (this *Account) GetCipher() Cipher {
+	switch this.CipherType {
+	case CipherType_AES_128_CFB:
 		return &AesCfb{KeyBytes: 16}
-	case Config_AES_256_CFB:
+	case CipherType_AES_256_CFB:
 		return &AesCfb{KeyBytes: 32}
-	case Config_CHACHA20:
+	case CipherType_CHACHA20:
 		return &ChaCha20{IVBytes: 8}
-	case Config_CHACHA20_IEFT:
+	case CipherType_CHACHA20_IEFT:
 		return &ChaCha20{IVBytes: 12}
 	}
 	panic("Failed to create Cipher. Should not happen.")
diff --git a/proxy/shadowsocks/config.pb.go b/proxy/shadowsocks/config.pb.go
index 11ffdeef8..11ea541bf 100644
--- a/proxy/shadowsocks/config.pb.go
+++ b/proxy/shadowsocks/config.pb.go
@@ -10,7 +10,8 @@ It is generated from these files:
 
 It has these top-level messages:
 	Account
-	Config
+	ServerConfig
+	ClientConfig
 */
 package shadowsocks
 
@@ -18,6 +19,7 @@ import proto "github.com/golang/protobuf/proto"
 import fmt "fmt"
 import math "math"
 import com_v2ray_core_common_protocol "v2ray.com/core/common/protocol"
+import com_v2ray_core_common_protocol1 "v2ray.com/core/common/protocol"
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
@@ -30,24 +32,24 @@ var _ = math.Inf
 // proto package needs to be updated.
 const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
-type Config_Cipher int32
+type CipherType int32
 
 const (
-	Config_UNKNOWN       Config_Cipher = 0
-	Config_AES_128_CFB   Config_Cipher = 1
-	Config_AES_256_CFB   Config_Cipher = 2
-	Config_CHACHA20      Config_Cipher = 3
-	Config_CHACHA20_IEFT Config_Cipher = 4
+	CipherType_UNKNOWN       CipherType = 0
+	CipherType_AES_128_CFB   CipherType = 1
+	CipherType_AES_256_CFB   CipherType = 2
+	CipherType_CHACHA20      CipherType = 3
+	CipherType_CHACHA20_IEFT CipherType = 4
 )
 
-var Config_Cipher_name = map[int32]string{
+var CipherType_name = map[int32]string{
 	0: "UNKNOWN",
 	1: "AES_128_CFB",
 	2: "AES_256_CFB",
 	3: "CHACHA20",
 	4: "CHACHA20_IEFT",
 }
-var Config_Cipher_value = map[string]int32{
+var CipherType_value = map[string]int32{
 	"UNKNOWN":       0,
 	"AES_128_CFB":   1,
 	"AES_256_CFB":   2,
@@ -55,13 +57,14 @@ var Config_Cipher_value = map[string]int32{
 	"CHACHA20_IEFT": 4,
 }
 
-func (x Config_Cipher) String() string {
-	return proto.EnumName(Config_Cipher_name, int32(x))
+func (x CipherType) String() string {
+	return proto.EnumName(CipherType_name, int32(x))
 }
-func (Config_Cipher) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{1, 0} }
+func (CipherType) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
 
 type Account struct {
-	Password string `protobuf:"bytes,1,opt,name=password" json:"password,omitempty"`
+	Password   string     `protobuf:"bytes,1,opt,name=password" json:"password,omitempty"`
+	CipherType CipherType `protobuf:"varint,2,opt,name=cipher_type,json=cipherType,enum=com.v2ray.core.proxy.shadowsocks.CipherType" json:"cipher_type,omitempty"`
 }
 
 func (m *Account) Reset()                    { *m = Account{} }
@@ -69,52 +72,71 @@ func (m *Account) String() string            { return proto.CompactTextString(m)
 func (*Account) ProtoMessage()               {}
 func (*Account) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
 
-type Config struct {
-	Cipher     Config_Cipher                        `protobuf:"varint,1,opt,name=cipher,enum=com.v2ray.core.proxy.shadowsocks.Config_Cipher" json:"cipher,omitempty"`
-	UdpEnabled bool                                 `protobuf:"varint,2,opt,name=udp_enabled,json=udpEnabled" json:"udp_enabled,omitempty"`
-	User       *com_v2ray_core_common_protocol.User `protobuf:"bytes,3,opt,name=user" json:"user,omitempty"`
+type ServerConfig struct {
+	UdpEnabled bool                                 `protobuf:"varint,1,opt,name=udp_enabled,json=udpEnabled" json:"udp_enabled,omitempty"`
+	User       *com_v2ray_core_common_protocol.User `protobuf:"bytes,2,opt,name=user" json:"user,omitempty"`
 }
 
-func (m *Config) Reset()                    { *m = Config{} }
-func (m *Config) String() string            { return proto.CompactTextString(m) }
-func (*Config) ProtoMessage()               {}
-func (*Config) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+func (m *ServerConfig) Reset()                    { *m = ServerConfig{} }
+func (m *ServerConfig) String() string            { return proto.CompactTextString(m) }
+func (*ServerConfig) ProtoMessage()               {}
+func (*ServerConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
 
-func (m *Config) GetUser() *com_v2ray_core_common_protocol.User {
+func (m *ServerConfig) GetUser() *com_v2ray_core_common_protocol.User {
 	if m != nil {
 		return m.User
 	}
 	return nil
 }
 
+type ClientConfig struct {
+	Server []*com_v2ray_core_common_protocol1.ServerSpecPB `protobuf:"bytes,1,rep,name=server" json:"server,omitempty"`
+}
+
+func (m *ClientConfig) Reset()                    { *m = ClientConfig{} }
+func (m *ClientConfig) String() string            { return proto.CompactTextString(m) }
+func (*ClientConfig) ProtoMessage()               {}
+func (*ClientConfig) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *ClientConfig) GetServer() []*com_v2ray_core_common_protocol1.ServerSpecPB {
+	if m != nil {
+		return m.Server
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*Account)(nil), "com.v2ray.core.proxy.shadowsocks.Account")
-	proto.RegisterType((*Config)(nil), "com.v2ray.core.proxy.shadowsocks.Config")
-	proto.RegisterEnum("com.v2ray.core.proxy.shadowsocks.Config_Cipher", Config_Cipher_name, Config_Cipher_value)
+	proto.RegisterType((*ServerConfig)(nil), "com.v2ray.core.proxy.shadowsocks.ServerConfig")
+	proto.RegisterType((*ClientConfig)(nil), "com.v2ray.core.proxy.shadowsocks.ClientConfig")
+	proto.RegisterEnum("com.v2ray.core.proxy.shadowsocks.CipherType", CipherType_name, CipherType_value)
 }
 
 func init() { proto.RegisterFile("v2ray.com/core/proxy/shadowsocks/config.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 308 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x84, 0x8f, 0x41, 0x4f, 0xc2, 0x40,
-	0x14, 0x84, 0x2d, 0x90, 0x82, 0xaf, 0xa2, 0x75, 0x4f, 0x84, 0x8b, 0x0d, 0xd1, 0x04, 0x0f, 0xee,
-	0x6a, 0x8d, 0x86, 0x6b, 0x69, 0x40, 0x8c, 0x09, 0x26, 0x55, 0xa2, 0xf1, 0xd2, 0x94, 0xed, 0x2a,
-	0x44, 0xda, 0xd7, 0xec, 0x52, 0x91, 0x3f, 0xe0, 0xef, 0x36, 0x6e, 0xad, 0x21, 0x5c, 0x3c, 0xbe,
-	0xc9, 0x7c, 0x6f, 0x66, 0xe0, 0xec, 0xc3, 0x95, 0xd1, 0x9a, 0x72, 0x4c, 0x18, 0x47, 0x29, 0x58,
-	0x26, 0xf1, 0x73, 0xcd, 0xd4, 0x2c, 0x8a, 0x71, 0xa5, 0x90, 0xbf, 0x2b, 0xc6, 0x31, 0x7d, 0x9d,
-	0xbf, 0xd1, 0x4c, 0xe2, 0x12, 0x89, 0xc3, 0x31, 0xa1, 0x25, 0x22, 0x05, 0xd5, 0x76, 0xba, 0x61,
-	0x6f, 0x9f, 0x6e, 0x3d, 0xe4, 0x98, 0x24, 0x98, 0x32, 0x8d, 0x73, 0x5c, 0xb0, 0x5c, 0x09, 0x59,
-	0x3c, 0xeb, 0x9c, 0x40, 0xdd, 0xe3, 0x1c, 0xf3, 0x74, 0x49, 0xda, 0xd0, 0xc8, 0x22, 0xa5, 0x56,
-	0x28, 0xe3, 0x96, 0xe1, 0x18, 0xdd, 0xdd, 0xe0, 0xef, 0xee, 0x7c, 0x55, 0xc0, 0xf4, 0x75, 0x09,
-	0x72, 0x03, 0x26, 0x9f, 0x67, 0x33, 0x21, 0xb5, 0x69, 0xdf, 0x65, 0xf4, 0xbf, 0x3e, 0xb4, 0x20,
-	0xa9, 0xaf, 0xb1, 0xe0, 0x17, 0x27, 0x47, 0x60, 0xe5, 0x71, 0x16, 0x8a, 0x34, 0x9a, 0x2e, 0x44,
-	0xdc, 0xaa, 0x38, 0x46, 0xb7, 0x11, 0x40, 0x1e, 0x67, 0x83, 0x42, 0x21, 0x3d, 0xa8, 0xfd, 0x34,
-	0x6d, 0x55, 0x1d, 0xa3, 0x6b, 0xb9, 0xc7, 0xdb, 0x39, 0xc5, 0x2a, 0x5a, 0xae, 0xa2, 0x13, 0x25,
-	0x64, 0xa0, 0x89, 0xce, 0x33, 0x98, 0x45, 0x18, 0xb1, 0xa0, 0x3e, 0x19, 0xdf, 0x8d, 0xef, 0x9f,
-	0xc6, 0xf6, 0x0e, 0x39, 0x00, 0xcb, 0x1b, 0x3c, 0x84, 0x17, 0x6e, 0x2f, 0xf4, 0x87, 0x7d, 0xdb,
-	0x28, 0x05, 0xf7, 0xea, 0x5a, 0x0b, 0x15, 0xb2, 0x07, 0x0d, 0x7f, 0xe4, 0xf9, 0x23, 0xcf, 0x3d,
-	0xb7, 0xab, 0xe4, 0x10, 0x9a, 0xe5, 0x15, 0xde, 0x0e, 0x86, 0x8f, 0x76, 0xad, 0xdf, 0x7c, 0xb1,
-	0x36, 0x96, 0x4d, 0x4d, 0x9d, 0x7e, 0xf9, 0x1d, 0x00, 0x00, 0xff, 0xff, 0x1d, 0xee, 0x41, 0x94,
-	0xc3, 0x01, 0x00, 0x00,
+	// 363 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x84, 0x90, 0xcf, 0x6f, 0xda, 0x30,
+	0x14, 0xc7, 0x17, 0x40, 0xc0, 0x5e, 0x60, 0xcb, 0x7c, 0x42, 0x5c, 0x16, 0xa1, 0x1d, 0xd8, 0xb4,
+	0x39, 0x2c, 0xd3, 0x26, 0xae, 0x21, 0x03, 0x51, 0x55, 0xa5, 0x55, 0x00, 0x55, 0xaa, 0x2a, 0x45,
+	0xc1, 0x71, 0x4b, 0x54, 0x12, 0x5b, 0x76, 0x02, 0xcd, 0x7f, 0x5f, 0xd5, 0x21, 0x14, 0xd1, 0x03,
+	0x37, 0xfb, 0xe9, 0x7d, 0xde, 0xf7, 0x07, 0xfc, 0xda, 0xda, 0x22, 0xc8, 0x31, 0x61, 0xb1, 0x45,
+	0x98, 0xa0, 0x16, 0x17, 0xec, 0x39, 0xb7, 0xe4, 0x3a, 0x08, 0xd9, 0x4e, 0x32, 0xf2, 0x24, 0x2d,
+	0xc2, 0x92, 0x87, 0xe8, 0x11, 0x73, 0xc1, 0x52, 0x86, 0x4c, 0xc2, 0x62, 0x5c, 0x22, 0x82, 0x62,
+	0xb5, 0x8e, 0x8f, 0xd6, 0xbb, 0xdf, 0x4f, 0x0e, 0x12, 0x16, 0xc7, 0x2c, 0xb1, 0x14, 0x4e, 0xd8,
+	0xc6, 0xca, 0x24, 0x15, 0xc5, 0xb1, 0xee, 0xe0, 0xcc, 0xaa, 0xa4, 0x62, 0x4b, 0x85, 0x2f, 0x39,
+	0x25, 0x05, 0xd1, 0x4b, 0xa1, 0xe1, 0x10, 0xc2, 0xb2, 0x24, 0x45, 0x5d, 0x68, 0xf2, 0x40, 0xca,
+	0x1d, 0x13, 0x61, 0x47, 0x33, 0xb5, 0xfe, 0x47, 0xef, 0xf0, 0x47, 0x57, 0xa0, 0x93, 0x88, 0xaf,
+	0xa9, 0xf0, 0xd3, 0x9c, 0xd3, 0x4e, 0xc5, 0xd4, 0xfa, 0x9f, 0xec, 0x9f, 0xf8, 0x9c, 0x77, 0xec,
+	0x2a, 0x68, 0x91, 0x73, 0xea, 0x01, 0x39, 0xbc, 0x7b, 0x11, 0xb4, 0xe6, 0xca, 0x8a, 0xab, 0xaa,
+	0x40, 0x5f, 0x41, 0xcf, 0x42, 0xee, 0xd3, 0x24, 0x58, 0x6d, 0x68, 0xa1, 0xde, 0xf4, 0x20, 0x0b,
+	0xf9, 0xb8, 0x98, 0xa0, 0x21, 0xd4, 0x5e, 0x63, 0x2a, 0x61, 0xdd, 0xfe, 0x76, 0x2a, 0x5c, 0xe4,
+	0xc4, 0x65, 0x4e, 0xbc, 0x94, 0x54, 0x78, 0x8a, 0xe8, 0x2d, 0xa0, 0xe5, 0x6e, 0x22, 0x9a, 0xa4,
+	0x7b, 0xa9, 0xff, 0x50, 0x2f, 0x5a, 0xe8, 0x68, 0x66, 0xb5, 0xaf, 0xbf, 0x0f, 0x71, 0x7a, 0xab,
+	0x30, 0x3a, 0xe7, 0x94, 0xdc, 0x8c, 0xbc, 0x3d, 0xfb, 0xe3, 0x1e, 0xe0, 0x2d, 0x1a, 0xd2, 0xa1,
+	0xb1, 0x9c, 0x5d, 0xce, 0xae, 0x6f, 0x67, 0xc6, 0x07, 0xf4, 0x19, 0x74, 0x67, 0x3c, 0xf7, 0x7f,
+	0xdb, 0x43, 0xdf, 0x9d, 0x8c, 0x0c, 0xad, 0x1c, 0xd8, 0x7f, 0xff, 0xa9, 0x41, 0x05, 0xb5, 0xa0,
+	0xe9, 0x4e, 0x1d, 0x77, 0xea, 0xd8, 0x03, 0xa3, 0x8a, 0xbe, 0x40, 0xbb, 0xfc, 0xf9, 0x17, 0xe3,
+	0xc9, 0xc2, 0xa8, 0x8d, 0xda, 0x77, 0xfa, 0x51, 0x89, 0xab, 0xba, 0xf2, 0xf2, 0xe7, 0x25, 0x00,
+	0x00, 0xff, 0xff, 0x37, 0xac, 0x76, 0x71, 0x5a, 0x02, 0x00, 0x00,
 }
diff --git a/proxy/shadowsocks/config.proto b/proxy/shadowsocks/config.proto
index 53c6990fb..f7c273071 100644
--- a/proxy/shadowsocks/config.proto
+++ b/proxy/shadowsocks/config.proto
@@ -1,23 +1,29 @@
 syntax = "proto3";
 
-import "v2ray.com/core/common/protocol/user.proto";
-
 package com.v2ray.core.proxy.shadowsocks;
 option go_package = "shadowsocks";
 
+import "v2ray.com/core/common/protocol/user.proto";
+import "v2ray.com/core/common/protocol/server_spec.proto";
+
 message Account {
   string password = 1;
+  CipherType cipher_type = 2;
 }
 
-message Config {
-  enum Cipher {
-    UNKNOWN = 0;
-    AES_128_CFB = 1;
-    AES_256_CFB = 2;
-    CHACHA20 = 3;
-    CHACHA20_IEFT = 4;
-  }
-  Cipher cipher = 1;
-  bool udp_enabled = 2;
-  com.v2ray.core.common.protocol.User user = 3;
+enum CipherType {
+  UNKNOWN = 0;
+  AES_128_CFB = 1;
+  AES_256_CFB = 2;
+  CHACHA20 = 3;
+  CHACHA20_IEFT = 4;
+}
+
+message ServerConfig {
+  bool udp_enabled = 1;
+  com.v2ray.core.common.protocol.User user = 2;
+}
+
+message ClientConfig {
+  repeated com.v2ray.core.common.protocol.ServerSpecPB server = 1;
 }
\ No newline at end of file
diff --git a/proxy/shadowsocks/config_json.go b/proxy/shadowsocks/config_json.go
index 5294249fa..7dfcf8fca 100644
--- a/proxy/shadowsocks/config_json.go
+++ b/proxy/shadowsocks/config_json.go
@@ -15,7 +15,7 @@ import (
 	"github.com/golang/protobuf/ptypes"
 )
 
-func (this *Config) UnmarshalJSON(data []byte) error {
+func (this *ServerConfig) UnmarshalJSON(data []byte) error {
 	type JsonConfig struct {
 		Cipher   string `json:"method"`
 		Password string `json:"password"`
@@ -29,28 +29,30 @@ func (this *Config) UnmarshalJSON(data []byte) error {
 	}
 
 	this.UdpEnabled = jsonConfig.UDP
-	jsonConfig.Cipher = strings.ToLower(jsonConfig.Cipher)
-	switch jsonConfig.Cipher {
-	case "aes-256-cfb":
-		this.Cipher = Config_AES_256_CFB
-	case "aes-128-cfb":
-		this.Cipher = Config_AES_128_CFB
-	case "chacha20":
-		this.Cipher = Config_CHACHA20
-	case "chacha20-ietf":
-		this.Cipher = Config_CHACHA20_IEFT
-	default:
-		log.Error("Shadowsocks: Unknown cipher method: ", jsonConfig.Cipher)
-		return common.ErrBadConfiguration
-	}
 
 	if len(jsonConfig.Password) == 0 {
 		log.Error("Shadowsocks: Password is not specified.")
 		return common.ErrBadConfiguration
 	}
-	account, err := ptypes.MarshalAny(&Account{
+	account := &Account{
 		Password: jsonConfig.Password,
-	})
+	}
+	jsonConfig.Cipher = strings.ToLower(jsonConfig.Cipher)
+	switch jsonConfig.Cipher {
+	case "aes-256-cfb":
+		account.CipherType = CipherType_AES_256_CFB
+	case "aes-128-cfb":
+		account.CipherType = CipherType_AES_128_CFB
+	case "chacha20":
+		account.CipherType = CipherType_CHACHA20
+	case "chacha20-ietf":
+		account.CipherType = CipherType_CHACHA20_IEFT
+	default:
+		log.Error("Shadowsocks: Unknown cipher method: ", jsonConfig.Cipher)
+		return common.ErrBadConfiguration
+	}
+
+	anyAccount, err := ptypes.MarshalAny(account)
 	if err != nil {
 		log.Error("Shadowsocks: Failed to create account: ", err)
 		return common.ErrBadConfiguration
@@ -58,12 +60,12 @@ func (this *Config) UnmarshalJSON(data []byte) error {
 	this.User = &protocol.User{
 		Email:   jsonConfig.Email,
 		Level:   uint32(jsonConfig.Level),
-		Account: account,
+		Account: anyAccount,
 	}
 
 	return nil
 }
 
 func init() {
-	registry.RegisterInboundConfig("shadowsocks", func() interface{} { return new(Config) })
+	registry.RegisterInboundConfig("shadowsocks", func() interface{} { return new(ServerConfig) })
 }
diff --git a/proxy/shadowsocks/server.go b/proxy/shadowsocks/server.go
index df4e64814..c64f9710d 100644
--- a/proxy/shadowsocks/server.go
+++ b/proxy/shadowsocks/server.go
@@ -23,7 +23,7 @@ import (
 
 type Server struct {
 	packetDispatcher dispatcher.PacketDispatcher
-	config           *Config
+	config           *ServerConfig
 	cipher           Cipher
 	cipherKey        []byte
 	meta             *proxy.InboundHandlerMeta
@@ -33,7 +33,7 @@ type Server struct {
 	udpServer        *udp.UDPServer
 }
 
-func NewServer(config *Config, space app.Space, meta *proxy.InboundHandlerMeta) (*Server, error) {
+func NewServer(config *ServerConfig, space app.Space, meta *proxy.InboundHandlerMeta) (*Server, error) {
 	if config.GetUser() == nil {
 		return nil, protocol.ErrUserMissing
 	}
@@ -41,7 +41,7 @@ func NewServer(config *Config, space app.Space, meta *proxy.InboundHandlerMeta)
 	if _, err := config.GetUser().GetTypedAccount(account); err != nil {
 		return nil, err
 	}
-	cipher := config.GetCipher()
+	cipher := account.GetCipher()
 	s := &Server{
 		config:    config,
 		meta:      meta,
@@ -283,7 +283,7 @@ func (this *ServerFactory) Create(space app.Space, rawConfig interface{}, meta *
 	if !space.HasApp(dispatcher.APP_ID) {
 		return nil, common.ErrBadConfiguration
 	}
-	return NewServer(rawConfig.(*Config), space, meta)
+	return NewServer(rawConfig.(*ServerConfig), space, meta)
 }
 
 func init() {