The invention provides a clean gasoline additive comprising 80-90 parts of organic cyclopentadiene, 10-12 parts of succinimide, 5-6 parts of n-octyl alcohol, 10-11 parts of isopropanol, 4-8 parts of diisopropyl ether, 6-7 parts of isooctane, 5-6 parts of polyisobutene amine, 7-8 parts of methyl ethyl ketone, 4-8 parts of dibutyl phosphite, 6-7 parts of polyglycol ether, 5-6 parts of cyclohexyl glycidyl ether, 4-8 parts of cyclohexene, 4-8 parts of isopropyl nitrate, 5-6 parts of 4-pentyldicyclohexylanone, 7-8 parts of carbon-12, 4-8 parts of 2-ethyl hexanol, 2-6 parts of oleic acid, 5-6 partsof bee wax, 5-6 parts of oleamide, 4-8 parts of p-xylene, 4-8 parts of tetrahydrofuran, 5-7 parts of cerium naphthenate, 3-4 parts of acetylacetone, 5-6 parts of ethylene glycol dimethyl ether, 5-6 parts of phthalimide and 6-7 parts of polyacrylamide. By using the clean gasoline additive, the environment pollution can be reduced, and the produced smoke can be reduced.