The invention discloses a steel surface treatment paint which comprises the following raw material ingredients in parts: 3-5 parts of phenyl hydroxide, 20-22 parts of epoxy resin, 18-20 parts of polyester resin, 12-15 parts of rosin resin, 10-12 parts of terpene resin, 8-10 parts of alkyd resin, 10-12 parts of amino resin, 15-18 parts of acrylic resin, 5-6 parts of a lacquer thinner, 8-10 parts of organosilicon oil, 5-8 parts of glycerine, 3-5 parts of ethyl acetate, 5-6 parts of activated zinc oxide, 5-6 parts of fast-dissolving sodium silicate, 3-6 parts of dimethyl malonate, 3-5 parts of glycidyl methacrylate, 5-8 parts of ferric hydroxide, 2-3 parts of polyvinyl alcohol, 20-25 parts of vinyl acetate-acrylic emulsion and 20-30 parts of acrylic emulsion. The steel surface treatment paint mainly plays a wetting and permeating effect on loose rust to separate and wrap the rust to prevent further development of rusting; meanwhile, after forming a film, the paint interacts with the rust by virtue of slow hydrolysis to form an acid complex to achieve the purpose of rust removal; the paint has stable properties, and increases the density of the paint film to prevent permeation of water and oxygen in air.