diff --git a/app/admin/hdl/hdl_role.go b/app/admin/hdl/hdl_role.go
index 76a1422..38e4a8c 100644
--- a/app/admin/hdl/hdl_role.go
+++ b/app/admin/hdl/hdl_role.go
@@ -424,6 +424,15 @@ func AddAdmin(c *gin.Context) {
 	}
 	admDb := db.AdminDb{}
 	admDb.Set()
+	isHasAdmin, err := admDb.GetAdminByUserName(req.Username)
+	if err != nil {
+		e.OutErr(c, e.ERR_DB_ORM, err.Error())
+		return
+	}
+	if isHasAdmin != nil {
+		e.OutErr(c, e.ERR, "当前用户名已存在，请勿重复添加")
+		return
+	}
 
 	admId, err := admDb.CreateAdminId()
 	if err != nil {