Construction method for finish concrete surface repair protective agent

The invention relates to a construction method for a finish concrete surface repair protective agent. The first embodiment of the method sequentially includes the steps of surface processing and surface touch-up paint brushing. The second embodiment of the method sequentially includes the steps of surface processing, transparent undercoat brushing and surface touch-up paint brushing. The third embodiment of the method sequentially includes the steps of surface processing, surface touch-up paint brushing and finish paint brushing. The fourth embodiment of the method sequentially includes the steps of surface processing, transparent undercoat brushing, surface touch-up paint brushing, and finish paint brushing. The construction method has the advantages that the method is simple and easy to achieve, the natural texture and the base of finish concrete can be protected, and the situation that color differences occur on the surface of finish concrete in the construction process of finish concrete is prevented.