The present invention discloses a wear-resistance and corrosion-resistance polyurethane paint, which is prepared from the raw materials such as polyurethane, silicon dioxide, titanium dioxide, asphalt, nanometer aluminum oxide, zirconium oxide, silicon nitride, talc powder, a phenolic resin, butyl methacrylate, an epoxy resin and a dispersing auxiliary agent, wherein the dispersing auxiliary agent is prepared from diatomaceous earth, jade powder, a silane coupling agent, acrylate and pentaerythritol triacrylate. According to the present invention, the paint has characteristics of extremely strong corrosion resistance, saline resistance, alkali resistance, good metal protection effect, high hardness, wear resistance, compression resistance, substantially-improved paint protection effect, strong paint stability, easy use, and easy operation.