The microscopic fabric and performance of polymer cement waterproof coating system, widely used in kitchen and toilet in our country currently, added mineral materials, is researched in this paper. 针对我国目前厨卫间大量使用的新型建筑防水材料&聚合物水泥防水涂料,研究了矿物材料在聚合物水泥防水涂料体系中的微观组构及性能。