Polyurethane surface layer material capable of preventing slipping when meeting water and preparation method of polyurethane surface layer material

The invention discloses a water-antiskid polyurethane surface layer material and a preparation method thereof. The polyurethane surface layer material comprises a component A, a component B and an auxiliary material, the component A is prepared from the following raw materials: isocyanate, first polyether polyol, a first plasticizer and modified hollow glass microspheres; the component B comprises an amine chain extender, second polyether polyol, inorganic salt whiskers, a second plasticizer, a thixotropic agent, short fibers, hollow microspheres, a catalyst, a defoaming agent, an ultraviolet absorbent, a light stabilizer, other fillers and optional pigments; the auxiliary materials comprise quartz sand, rubber powder and optional ethyl acetate. The problems that the anti-skid value is reduced after the surface layer material encounters water and the anti-skid value is reduced after the surface layer material is abraded are solved, and the effects of weather resistance, durability, wear resistance and durabil