The invention discloses an electrolytic capacitor case radiation coating, prepared from, by weight, 50-60 parts of mixed bed resin, 30-40 parts of soft water resin, 70-80 parts of cation exchange resin cation exchange resin, 60-70 parts of waterproof silica gel, 60-65 parts of polyester resin, 50-55 parts of methylated amino resin, 60-70 parts of vanadium carbide, 8-10 parts of silicon chloride, 6-8 parts of magnesium silicide, 8-10 parts of mica powder, 10-12 parts of titanium dioxide, 10-12 parts of kaolin, 6-8 parts of quartz stone powder, 8-10 parts of diatom ooze, 6-7 parts of magnesium ethylate, 3-5 parts of propargyl alcohol, 5-6 parts of graphitic fiber, 8-10 parts of ceramic fiber, 6-10 parts of glass fiber, 4-5 parts of ammonium metavanadate, 6-8 parts of phosphotungstic acid, 7-9 parts of cobalt blue, 4-5 parts of copper hydroxide, 6-8 parts of ferroferric oxide, 5-6 parts of titanium trichloride, 4-6 parts of copper oxychloride, 7-8 parts of cobaltous hydroxide, 5-7 parts of sodium selenite, and 150-180 parts of deionized water. The electrolytic capacitor case radiation coating can effectively reach effects of radiation by being coated on the electrolytic capacitor case.