The invention relates to anticorrosive paint for a stainless steel decorating plate and a preparation method of the anticorrosive paint. The anticorrosive paint comprises the following components in parts by mass: 33-34 parts of white latex, 2-10 parts of iron oxide red, 1-4 parts of chromium oxide green, 0.3-1.5 parts of mica magnesium oxide, 5-15 parts of aluminum triphosphate, 2-8 parts of zinc chromate, 1-7 parts of polyvinyl acetal, 0.8-4 parts of zinc oxide, 6-18 parts of zirconia, 1-5 parts of cobalt naphthenate, 0.5-1.8 parts of polyvinyl siloxane, 0.7-2.2 parts of tripropylene glycol diacrylate, 0.1-0.6 part of diethyl methyl benzene diamine, 1-5 parts of sodium nitrite, 0.3-1.6 parts of phenolic resin and 12-24 parts of purified water. The anticorrosive paint has not only an excellent anticorrosive function, but also the properties of relatively high impact resistance, flexibility, hardness, water resistance and the like.