diff --git a/routers/user/Invitation.go b/routers/user/Invitation.go
index 0fa8cd4ed..8491390b2 100644
--- a/routers/user/Invitation.go
+++ b/routers/user/Invitation.go
@@ -63,14 +63,14 @@ func InviationTpl(ctx *context.Context) {
 	ctx.HTML(200, tplInvitation)
 }
 
-func RegisteUserByInvitaionCode(invitationcode string, newUserId int64) error {
+func RegisteUserByInvitaionCode(invitationcode string, newUserId int64, newPhoneNumber string) error {
 	user := parseInvitaionCode(invitationcode)
 	if user == nil {
 		return errors.New("The invitated user not existed.")
 	}
 
-	if user.PhoneNumber != "" {
-		re := models.QueryInvitaionByPhone(user.PhoneNumber)
+	if newPhoneNumber != "" {
+		re := models.QueryInvitaionByPhone(newPhoneNumber)
 		if re != nil {
 			if len(re) > 0 {
 				log.Info("The phone has been invitated. so ingore it.")
@@ -84,7 +84,7 @@ func RegisteUserByInvitaionCode(invitationcode string, newUserId int64) error {
 	invitation := &models.Invitation{
 		SrcUserID: user.ID,
 		UserID:    newUserId,
-		Phone:     user.PhoneNumber,
+		Phone:     newPhoneNumber,
 	}
 
 	err := models.InsertInvitaion(invitation)
diff --git a/routers/user/auth.go b/routers/user/auth.go
index fb8674da0..57ffb1710 100755
--- a/routers/user/auth.go
+++ b/routers/user/auth.go
@@ -1368,7 +1368,7 @@ func SignUpPost(ctx *context.Context, cpt *captcha.Captcha, form auth.RegisterFo
 
 	log.Info("enter here, and form.InvitaionCode =" + invitationCode)
 	if invitationCode != "" {
-		RegisteUserByInvitaionCode(invitationCode, u.ID)
+		RegisteUserByInvitaionCode(invitationCode, u.ID, u.PhoneNumber)
 	}
 
 	err := models.AddEmailAddress(&models.EmailAddress{