Ultraviolet-resistant automobile finish paint and preparation method thereof

The invention relates to ultraviolet-resistant automobile finish paint and a preparation method thereof, and belongs to the technical field of automobile paint. The technical problem that in the prior art, polyurethane automobile finish paint is poor in weather resistance is solved. The ultraviolet-resistant automobile finishing paint provided by the invention comprises a coating agent A and a coating agent B in parts by weight, the coating agent A is prepared from 100 parts of polyalcohol, 30 to 40 parts of trifluorofluorocarbon resin, 10 to 20 parts of flatting agent, 2 to 4 parts of dispersing agent, 3 to 5 parts of UVP 327, 1 to 2 parts of defoaming agent, 1 to 2 parts of wetting agent, 5 to 10 parts of hydrophilic chain extender, 0 to 5 parts of pigment, 2 to 3 parts of perlite and 50 to 80 parts of ethyl acetate; the coating agent B is prepared from 20 to 25 parts of hexamethylene diisocyanate. The ultraviolet-resistant automobile finish paint is good in weather resistance and can resist exposure to the