Aqueous hydroxyacrylic dispersant used as a film-forming material,pigments,fillers,additives,water and film-forming additives are added to make component A,and a hydrophilic isocyanate curing agent component B,they are used to prepare an aqueous two-component polyurethane coating.Under the application method of spray coating,three types of additives such as wetting and dispersing agent,defoaming agent and leveling agent influence on the effect of water-based two-component polyurethane industrial coating film surface.Water-based two-component polyurethane industrial coatings with properties that meet the requirements of HG/T 4761—2014 standards have been prepared and widely used in the field of electromechanical equipment.