The invention provides steel anticorrosive paint based on graphene and a preparation method of the steel anticorrosive paint. The steel anticorrosive paint is characterized by being prepared from, by mass, 50-60 parts of fluorinated acrylate, 30-35 parts of diphenyl ehter resin, 10-15 parts of polyvinyl alcohol butyral resin, 5-8 parts of polyacrylamide, 3-5 parts of carboxymethyl cellulose sodium, 15-25 parts of nano silicon dioxide, 0.2-0.8 part of dispersing agent, 0.3-0.6 part of anticorrosive, 0.6-1.2 parts of adhesion promoter and 0.5-1.5 parts of graphene powder. According to the anticorrosive paint, a dense and hard protection film is formed on the surface of steel, the paint can be evenly distributed on the surface of the steel, the surface of the steel is completely isolated from a corrosive medium in air, a good anticorrosive effect is achieved, and the anticorrosive performance and adhesion of the steel anticorrosive paint can be further improved.