The invention relates to the field of coating materials and particularly relates to PU paint. The PU paint is prepared from the following substances in parts by weight: 15-25 parts of castor-oil fatty acid, 15-20 parts of glycerine, 2-6 parts of benzoic acid, 35-45 parts of dilute solvent, 0.8-1.2 parts of catalyst hypophosphorous acid, 15-25 parts of glycidyl tertcarbonate, 10-15 parts of butyl acrylate, 5-10 parts of acrylic acid, 5-15 parts of 2-hydroxypropyl acrylate, 2-8 parts of hydroxyethyl methacrylate, 9-15 parts of crude terephthalic acid, 5-15 parts of phthalic anhydride, 15-20 parts of methyl methacrylate, 5-10 parts of styrene, 0.1-0.3 part of chain transfer agent, 0.05-0.08 part of antioxidant, 3-8 parts of organosilicone auxiliaries, 0.8-1.2 parts of initiator, 5-10 parts of curing agent, 5-8 parts of diluent and 40-50 parts of solvent. According to the PU paint provided by the invention, a paint film is thick in hand feeling, the gloss is soft, the chromaticity is uniform, the impact strength is good, and the leveling property and chemical corrosion resistance are good.