The invention discloses chemical-corrosion-resistant butadiene-acrylonitrile latex for disposable gloves and a preparation method of the chemical-corrosion-resistant butadiene-acrylonitrile latex. The chemical-corrosion-resistant butadiene-acrylonitrile latex is prepared from, by weight, 80-90 parts of butadiene, 40-50 parts of acrylonitrile, 6-8 parts of crylic acid, 4-6 parts of methyl acrylate, 0.4-0.8 part of sodium bicarbonate, 0.3-0.5 part of potassium chloride, 1-2 parts of molecular weight modifier, 2-4 parts of polyoxyethylene stearates, 1-2 parts of diallyl phthalate and the like. The flexibility of a latex product is improved, different monomers are evenly distributed on a macromolecular chain, and the physical and chemical properties of the latex product are improved; a low-temperature reaction is adopted, the size of the molecular weight of micelle is uniform, the stretch rate of the product is increased, and stability is enhanced; by means of added isophorone, microcrystalline wax and other additives, the chemical corrosion resisting performance of the product is improved, and the aging preventing performance of the product is improved.