diff --git a/conf/conf.go b/conf/conf.go
index 0b46104..e54997c 100644
--- a/conf/conf.go
+++ b/conf/conf.go
@@ -23,6 +23,7 @@ func New() *Conf {
 			Type: "xray",
 			XrayConfig: &XrayConfig{
 				LogConfig:          NewLogConfig(),
+				AssetPath:          "/etc/V2bX/",
 				DnsConfigPath:      "",
 				InboundConfigPath:  "",
 				OutboundConfigPath: "",
@@ -35,9 +36,6 @@ func New() *Conf {
 }
 
 func (p *Conf) LoadFromPath(filePath string) error {
-	confPath := path.Dir(filePath)
-	os.Setenv("XRAY_LOCATION_ASSET", confPath)
-	os.Setenv("XRAY_LOCATION_CONFIG", confPath)
 	f, err := os.Open(filePath)
 	if err != nil {
 		return fmt.Errorf("open config file error: %s", err)
diff --git a/conf/conf_test.go b/conf/conf_test.go
index 1c4f917..44bc756 100644
--- a/conf/conf_test.go
+++ b/conf/conf_test.go
@@ -7,13 +7,13 @@ import (
 
 func TestConf_LoadFromPath(t *testing.T) {
 	c := New()
-	t.Log(c.LoadFromPath("../example/config.yml.example"), c.NodesConfig[0].ControllerConfig.EnableXtls)
+	t.Log(c.LoadFromPath("../example/config.yml.example"))
 }
 
 func TestConf_Watch(t *testing.T) {
 	c := New()
-	c.Watch("../example/config.yml.example", func() {
+	log.Println(c.Watch("../example/config.yml.example", func() {
 		log.Println(1)
-	})
+	}))
 	select {}
 }
diff --git a/conf/core.go b/conf/core.go
index 99eb4a0..ce4fc08 100644
--- a/conf/core.go
+++ b/conf/core.go
@@ -7,6 +7,7 @@ type CoreConfig struct {
 
 type XrayConfig struct {
 	LogConfig          *LogConfig        `yaml:"Log"`
+	AssetPath          string            `yaml:"AssetPath"`
 	DnsConfigPath      string            `yaml:"DnsConfigPath"`
 	RouteConfigPath    string            `yaml:"RouteConfigPath"`
 	ConnectionConfig   *ConnectionConfig `yaml:"ConnectionConfig"`
diff --git a/core/core.go b/core/core.go
index 6f02499..ad00877 100644
--- a/core/core.go
+++ b/core/core.go
@@ -12,6 +12,25 @@ var (
 )
 
 func NewCore(c *conf.CoreConfig) (Core, error) {
+	// multi core
+	if types := strings.Split(c.Type, " "); len(types) > 1 {
+		var cs []Core
+		for _, t := range types {
+			f, ok := cores[strings.ToLower(c.Type)]
+			if !ok {
+				return nil, errors.New("unknown core type: " + t)
+			}
+			core1, err := f(c)
+			if err != nil {
+				return nil, err
+			}
+			cs = append(cs, core1)
+		}
+		return &Selecter{
+			cores: cs,
+		}, nil
+	}
+	// one core
 	if f, ok := cores[strings.ToLower(c.Type)]; ok {
 		return f(c)
 	} else {
diff --git a/core/hy/hy.go b/core/hy/hy.go
index a5eca71..e261e10 100644
--- a/core/hy/hy.go
+++ b/core/hy/hy.go
@@ -2,10 +2,11 @@ package hy
 
 import (
 	"fmt"
+	"sync"
+
 	"github.com/Yuzuki616/V2bX/conf"
 	vCore "github.com/Yuzuki616/V2bX/core"
 	"github.com/hashicorp/go-multierror"
-	"sync"
 )
 
 func init() {
@@ -40,3 +41,9 @@ func (h *Hy) Close() error {
 	}
 	return nil
 }
+
+func (h *Hy) Protocols() []string {
+	return []string{
+		"hysteria",
+	}
+}
diff --git a/core/interface.go b/core/interface.go
index 56513e0..0af41fa 100644
--- a/core/interface.go
+++ b/core/interface.go
@@ -19,4 +19,5 @@ type Core interface {
 	AddUsers(p *AddUsersParams) (added int, err error)
 	GetUserTraffic(tag, uuid string, reset bool) (up int64, down int64)
 	DelUsers(users []string, tag string) error
+	Protocols() []string
 }
diff --git a/core/selecter.go b/core/selecter.go
new file mode 100644
index 0000000..38127a9
--- /dev/null
+++ b/core/selecter.go
@@ -0,0 +1,98 @@
+package core
+
+import (
+	"errors"
+	"sync"
+
+	"github.com/Yuzuki616/V2bX/api/panel"
+	"github.com/Yuzuki616/V2bX/conf"
+	"github.com/hashicorp/go-multierror"
+)
+
+type Selecter struct {
+	cores []Core
+	nodes sync.Map
+}
+
+func (s *Selecter) Start() error {
+	for i := range s.cores {
+		err := s.cores[i].Start()
+		return err
+	}
+	return nil
+}
+
+func (s *Selecter) Close() error {
+	var errs error
+	for i := range s.cores {
+		errs = multierror.Append(errs, s.cores[i].Close())
+	}
+	return errs
+}
+
+func isSupported(protocol string, protocols []string) bool {
+	for i := range protocols {
+		if protocol == protocols[i] {
+			return true
+		}
+	}
+	return false
+}
+
+func (s *Selecter) AddNode(tag string, info *panel.NodeInfo, config *conf.ControllerConfig) error {
+	for i := range s.cores {
+		if !isSupported(info.Type, s.cores[i].Protocols()) {
+			continue
+		}
+		err := s.cores[i].AddNode(tag, info, config)
+		if err != nil {
+			return err
+		}
+		s.nodes.Store(tag, i)
+	}
+	return errors.New("the node type is not support")
+}
+
+func (s *Selecter) DelNode(tag string) error {
+	if t, e := s.nodes.Load(tag); e {
+		err := s.cores[t.(int)].DelNode(tag)
+		if err != nil {
+			return err
+		}
+		s.nodes.Delete(tag)
+		return nil
+	}
+	return errors.New("the node is not have")
+}
+
+func (s *Selecter) AddUsers(p *AddUsersParams) (added int, err error) {
+	t, e := s.nodes.Load(p.Tag)
+	if !e {
+		return 0, errors.New("the node is not have")
+	}
+	return s.cores[t.(int)].AddUsers(p)
+}
+
+func (s *Selecter) GetUserTraffic(tag, uuid string, reset bool) (up int64, down int64) {
+	t, e := s.nodes.Load(tag)
+	if !e {
+		return 0, 0
+	}
+	return s.cores[t.(int)].GetUserTraffic(tag, uuid, reset)
+}
+
+func (s *Selecter) DelUsers(users []string, tag string) error {
+	t, e := s.nodes.Load(tag)
+	if !e {
+		return errors.New("the node is not have")
+	}
+	return s.cores[t.(int)].DelUsers(users, tag)
+}
+
+func (s *Selecter) Protocols() []string {
+	protocols := make([]string, 0)
+	for i := range s.cores {
+		protocols = append(protocols, s.cores[i].Protocols()...)
+	}
+	return protocols
+}
diff --git a/core/xray/core.go b/core/xray/xray.go
similarity index 97%
rename from core/xray/core.go
rename to core/xray/xray.go
index 55fa3fa..280eb10 100644
--- a/core/xray/core.go
+++ b/core/xray/xray.go
@@ -53,6 +53,7 @@ func parseConnectionConfig(c *conf.ConnectionConfig) (policy *coreConf.Policy) {
 }
 
 func getCore(c *conf.XrayConfig) *core.Instance {
+	os.Setenv("XRAY_LOCATION_ASSET", c.AssetPath)
 	// Log Config
 	coreLogConfig := &coreConf.LogConfig{}
 	coreLogConfig.LogLevel = c.LogConfig.Level
@@ -183,3 +184,11 @@ func (c *Core) Close() error {
 	}
 	return nil
 }
+
+func (c *Core) Protocols() []string {
+	return []string{
+		"v2ray",
+		"shadowsocks",
+		"trojan",
+	}
+}
diff --git a/example/config.yml.example b/example/config.yml.example
index 49f3c37..b27f79e 100644
--- a/example/config.yml.example
+++ b/example/config.yml.example
@@ -1,5 +1,5 @@
 CoreConfig:
-  Type: "xray" # Core type
+  Type: "xray" # Core type. if you need many cores, use " " to split
   XrayConfig:
     Log:
       Level: warning # Log level: none, error, warning, info, debug
@@ -41,7 +41,7 @@ Nodes:
             Dest: 80 # Required, Destination of fallback, check https://xtls.github.io/config/features/fallback.html for details.
             ProxyProtocolVer: 0 # Send PROXY protocol version, 0 for dsable
       HyOptions:
-        Resolver: "udp://1.1.1.1:53", // DNS resolver address
+        Resolver: "udp://1.1.1.1:53" # DNS resolver address
         ResolvePreference: 64 # DNS IPv4/IPv6 preference. Available options: "64" (IPv6 first, fallback to IPv4), "46" (IPv4 first, fallback to IPv6), "6" (IPv6 only), "4" (IPv4 only)
         SendDevice: "eth0" # Bind device for outbound connections (usually requires root)
       LimitConfig: