An ultraviolet curing coating for coating a plastic surface is prepared from the following materials of 50-55 parts of aromaticurethane acrylate, 2-3 parts of isopropyl alcohol, 4-5 parts of photoinitiator 184, 1-2 parts of nanosilicon dioxide, 9-12 parts of tripropylene glycol diacrylate, 1-2 parts of zirconium oxide, 1-2 parts of titanium dioxide, 2-4 parts of butyl acrylate, 1-2 parts of fatty acid polyglycol ester, 1-2 parts of glycidolbutyl ether, 3-4 parts of triethylene glycol, 1-2 parts of polyvinyl alcohol, 1-2 parts of titanatecoupling reagent TMC-TTS, and 5-6 parts of dispersing auxiliaryaccording to parts by weight. Due to the use of the aromaticurethane acrylate, the coating provided by the invention has the excellent high-wearing feature, excellent anchoring strength, excellent flexibility, excellent high peel strength and excellent low temperature resistance property as well as the remarkable optical property and weather resistance of the polyacrylate, and has high cohesiveness on plastics and the like; due to the use of the nano silicon carbide and titanium dioxide, the coating has an excellent shielding effect and fulfills the purposes of ultraviolet aging resistance and thermal aging resistance, the heat insulation property of the coating is added at the same time, and the coating provided by the invention is applicable to the coating of a plastic product.