The invention discloses an anticorrosive protective layer for chemical equipment, which is composed of the following components in percentage by weight: 1-2 parts of polyethyleneglycol bis stearate, 2-3 parts of polydimethylsiloxane, 1-2 parts of yttrium oxide, 1-2 parts of sodium pyrophosphate, 1-2 parts of selenium acetylacetonate, 4-5 parts of chromium chloride, 1-2 parts of nano magnesium hydroxide, 2-5 parts of ammonium molybdate, 3-7 parts of perchloroethylene, 7-8 parts of decabromodiphenyl oxide, 2-3 parts of polyamide resin, 1-2 parts of p-tert-butyl benzoic acid, 1-2 parts of vinyl trimethoxy silane, 1-2 parts of allyl heptanoate and 5-6 parts of isomerized tridecyl alcohol polyethenoxy ether. The anticorrosive protective layer has the advantages of favorable brushing property, favorable wettability for object surfaces, high drying speed of the paint film, favorable mechanical property, favorable acid/alkali resistance, favorable water resistance and favorable organic solvent resistance.