Environment-friendly ultraviolet curing primer comprises the components in parts by weight as follows: 45-50 parts of epoxy acrylate, 2-3 parts of ethoxyl methyl acrylic ester phosphate, 10-12 parts of tripropylene glycol diacrylate, 1-2 parts of trifluoroacetyl acetone europium, 1-3 parts of tetrahydrofuran, 3-5 parts of 3-propargyl chloride, 1-2 parts of benzyl trimethyl ammonium tribromide, 3-4 parts of 1-hydroxyl-cyclohexyl-phenyl ketone (184), 1-2 parts of glycol diglycidyl ether, 3-4 parts of isocyanuric acid trimethyl ester and 3-4 parts of a dispersing agent. The paint has excellent water resistance, hot water resistance, drug resistance, cohesiveness and toughness, active reaction monomers substitute for an organic solvent, a few organic matters are volatilized, and the paint is safe and environment-friendly; and the paint is good in atomization effect, device wrapping effect, adherence and rubbing property, can serve as the primer suitably and is not corroded for a long time.