diff --git a/adapter/outbound/http.go b/adapter/outbound/http.go
index b742510..c435bcc 100644
--- a/adapter/outbound/http.go
+++ b/adapter/outbound/http.go
@@ -22,18 +22,20 @@ type Http struct {
 	user      string
 	pass      string
 	tlsConfig *tls.Config
+	Headers   http.Header
 }
 
 type HttpOption struct {
 	BasicOption
-	Name           string `proxy:"name"`
-	Server         string `proxy:"server"`
-	Port           int    `proxy:"port"`
-	UserName       string `proxy:"username,omitempty"`
-	Password       string `proxy:"password,omitempty"`
-	TLS            bool   `proxy:"tls,omitempty"`
-	SNI            string `proxy:"sni,omitempty"`
-	SkipCertVerify bool   `proxy:"skip-cert-verify,omitempty"`
+	Name           string            `proxy:"name"`
+	Server         string            `proxy:"server"`
+	Port           int               `proxy:"port"`
+	UserName       string            `proxy:"username,omitempty"`
+	Password       string            `proxy:"password,omitempty"`
+	TLS            bool              `proxy:"tls,omitempty"`
+	SNI            string            `proxy:"sni,omitempty"`
+	SkipCertVerify bool              `proxy:"skip-cert-verify,omitempty"`
+	Headers        map[string]string `proxy:"headers,omitempty"`
 }
 
 // StreamConn implements C.ProxyAdapter
@@ -82,12 +84,12 @@ func (h *Http) shakeHand(metadata *C.Metadata, rw io.ReadWriter) error {
 		URL: &url.URL{
 			Host: addr,
 		},
-		Host: addr,
-		Header: http.Header{
-			"Proxy-Connection": []string{"Keep-Alive"},
-		},
+		Host:   addr,
+		Header: h.Headers.Clone(),
 	}
 
+	req.Header.Add("Proxy-Connection", "Keep-Alive")
+
 	if h.user != "" && h.pass != "" {
 		auth := h.user + ":" + h.pass
 		req.Header.Add("Proxy-Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(auth)))
@@ -134,6 +136,11 @@ func NewHttp(option HttpOption) *Http {
 		}
 	}
 
+	headers := http.Header{}
+	for name, value := range option.Headers {
+		headers.Add(name, value)
+	}
+
 	return &Http{
 		Base: &Base{
 			name:  option.Name,
@@ -145,5 +152,6 @@ func NewHttp(option HttpOption) *Http {
 		user:      option.UserName,
 		pass:      option.Password,
 		tlsConfig: tlsConfig,
+		Headers:   headers,
 	}
 }