diff --git a/business/auth2/auth2.go b/business/auth2/auth2.go
index d25a1d825..02c8dfb9f 100644
--- a/business/auth2/auth2.go
+++ b/business/auth2/auth2.go
@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"encoding/base64"
 	"errors"
+	"fmt"
 	"regexp"
 	"strings"
 	"time"
@@ -212,6 +213,9 @@ func SendVerifyCode(authToken, captchaID, captchaValue, authID string) (verfifyC
 		if handler := authers[authType]; handler == nil {
 			err = ErrIllegalAuthType
 		} else {
+			if user, _ := dao.GetUserByID(dao.GetDB(), "mobile", authID); user != nil {
+				return "", authInfo, fmt.Errorf("该用户已存在，请勿重复注册！")
+			}
 			verfifyCode, err = handler.SendVerifyCode(authID)
 		}
 	}