diff --git a/netutil/net.go b/netutil/net.go
index c685ab3..6960de0 100644
--- a/netutil/net.go
+++ b/netutil/net.go
@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"net"
 	"net/http"
+	"net/url"
 	"strings"
 )
 
@@ -157,3 +158,15 @@ func IsInternalIP(IP net.IP) bool {
 	}
 	return false
 }
+
+// EncodeUrl encode url
+func EncodeUrl(urlStr string) (string, error) {
+	URL, err := url.Parse(urlStr)
+	if err != nil {
+		return "", err
+	}
+
+	URL.RawQuery = URL.Query().Encode()
+
+	return URL.String(), nil
+}
diff --git a/netutil/net_test.go b/netutil/net_test.go
index f4fa146..45723a5 100644
--- a/netutil/net_test.go
+++ b/netutil/net_test.go
@@ -96,3 +96,16 @@ func TestGetMacAddrs(t *testing.T) {
 	macAddrs := GetMacAddrs()
 	t.Log(macAddrs)
 }
+
+func TestEncodeUrl(t *testing.T) {
+	assert := internal.NewAssert(t, "TestIsInternalIP")
+
+	urlAddr := "http://www.lancet.com?a=1&b=[2]"
+	encodedUrl, err := EncodeUrl(urlAddr)
+	if err != nil {
+		t.Log(err)
+	}
+
+	expected := "http://www.lancet.com?a=1&b=%5B2%5D"
+	assert.Equal(expected, encodedUrl)
+}