In this paper,waterborme epoxy coating for shower coating was prepared by water-based epoxy resin as the main forming film.The effects of different waterborme epoxy resins,defoaming agents,rheological additives and their dosage on construction performance of the shower coating were discussed in detail.The results show that the high molecular weight waterbome epoxy resin can prolong the activation period and meet the requirements of shower coating construction,and combined using polyether-modified silicone antifoaming agent and defoaming agent can reach completely defoaming.In addition,the combination of associative polyurethane thickener and inorganic bentonite can meet the requirements of rheological performance.