Relating to the technical field of paint, the invention provides a laptop case paint coating and a preparation method thereof. The laptop case paint coating is prepared from the following raw materials: polyurethane, n-butanol, an amino-silane coupling agent, p-xylene, tert-butyldimethylsilyl chloride, cognac oil, tributyl tin methacrylate, spherical silver powder, gamma-Nonanolactone, epoxy resin, triruthenium dodecacarbonyl, alumina particles, bentonite and deionized water. The preparation method consists of: mixing the amino-silane coupling agent, p-xylene, tert-butyldimethylsilyl chloride, spherical silver powder and triruthenium dodecacarbonyl evenly, then performing standing, adding gamma-Nonanolactone and epoxy resin, stirring the substances evenly, and then conducting high-speed shearing; b. mixing polyurethane and n-butanol and carrying out stirring reaction, then adding cognac oil, tributyl tin methacrylate, bentonite, alumina particles and deionized water and performing mixing; and c. adding the raw material obtained in step a into the product of step b, and carrying out high-speed shearing and static cooling. The laptop case paint coating provided by the invention has the characteristics of good wear resistance, good flame resistance, high strength, and difficult discoloration and shedding.