diff --git a/business/auth2/auth2.go b/business/auth2/auth2.go
index 25ee10c06..617bcc6cd 100644
--- a/business/auth2/auth2.go
+++ b/business/auth2/auth2.go
@@ -269,9 +269,11 @@ func Login(authType, authID, authIDType, authSecret string) (authInfo *AuthInfo,
 			}
 			authInfo = createAuthInfo(user, authBindEx)
 			if needAutoAddAuthBind {
-				if authers[authInfo.AuthBindInfo.Type].AddAuthBind(authInfo.AuthBindInfo, user.GetName()) == nil {
-					// todo，用户类型应该要与RegisterUser一起统一处理
-					userProvider.UpdateUserType(user.GetID(), handler.GetUserType(), UpdateUserTypeAdd)
+				if authers[authInfo.AuthBindInfo.Type].UnbindAuth(user.GetID(), authInfo.GetAuthType(), user.GetName()) == nil {
+					if authers[authInfo.AuthBindInfo.Type].AddAuthBind(authInfo.AuthBindInfo, user.GetName()) == nil {
+						// todo，用户类型应该要与RegisterUser一起统一处理
+						userProvider.UpdateUserType(user.GetID(), handler.GetUserType(), UpdateUserTypeAdd)
+					}
 				}
 			}
 		}