Cyanoacrylate medical adhesive, wherein the medical adhesive is prepared by raw materials comprising the following components: a cyanoacrylate composition; and a composite stabilizer; wherein the cyanoacrylate composition comprises the following components: A1: an alkyl cyanoacrylate compound and/or alkyl ether cyanoacrylate compound, wherein the alkyl cyanoacrylate compound comprises one or more compounds of methyl cyanoacrylate, ethyl cyanoacrylate, isobutyl cyanoacrylate, n-butyl cyanoacrylate, n-octyl cyanoacrylate, or isooctyl cyanoacrylate; the alkyl ether cyanoacrylate compound comprises one or more compounds of methoxy methyl cyanoacrylate, methoxy ethyl cyanoacrylate, methoxy butyl cyanoacrylate, methoxy octyl cyanoacrylate, ethoxy methyl cyanoacrylate, ethoxy ethyl cyanoacrylate, ethoxy butyl cyanoacrylate, or ethoxy octyl cyanoacrylate; and A2: an alkyl ester cyanoacrylate compound, wherein the alkyl ester cyanoacrylate compound comprises one or more compounds of methyl lactyl cyanoacrylate, ethyl lactyl cyanoacrylate, propyl lactyl cyanoacrylate, butyl lactyl cyanoacrylate, pentyl lactyl cyanoacrylate, hexyl lactyl cyanoacrylate or isooctyl lactyl cyanoacrylate; wherein the composite stabilizer comprises at least the following components: C1: an anion polymerization inhibitor, wherein the anion polymerization inhibitor comprises a strong acid substance selected from perchloric acid, permanganic acid, sulfuric acid, methanesulfonic acid, p-toluene sulfonic acid, hydrofluoric acid, sulfonic acid or their compositions; C2: a gas polymerization inhibitor, wherein the gas polymerization inhibitor is acidic gas selected from hydrogen chloride, boron trifluoride, sulfur dioxide, nitrogen dioxide or their compositions; C3: a free radical polymerization inhibitor, which comprises a quinone polymerization inhibitor with smaller steric hindrance and a quinone polymerization inhibitor with larger steric hindrance; the quinone polymerization inhibitor with smaller steric hindrance comprises one or more compounds of hydroquinone, p-hydroxyanisole and p-dimethoxybenzene; the quinone polymerization inhibitor with larger steric hindrance comprises one or more compounds of butyl hydroxyanisole, 2,6-di-tert-butyl-4-methylphenol, tert-butyl hydroquinone(TBHQ), 2,5-di-tert-butyl hydroquinone(DBHQ), p-tert-butylcatechol, 1,1-diphenyl-2-trinitrophenyl hydrazine(DPPH); C4: a natural antioxidant, wherein the natural antioxidant is phytic acid; wherein molar ratio of the alkyl cyanoacrylate compound and / or the alkyl ether cyanoacrylate compound to the alkyl ester cyanoacrylate compound is A1:A2=10:1-1:1; amount of the anion polymerization inhibitor is 30-1000ppm of total weight of cyanoacrylate medical adhesive, amount of the gas polymerization inhibitor is 20-500ppm of total weight of cyanoacrylate medical adhesive, amount of the quinone polymerization inhibitor with smaller steric hindrance is 50-2000ppm of total weight of cyanoacrylate medical adhesive, amount of the quinone polymerization inhibitor with larger steric hindrance is 50-1000ppm of total weight of cyanoacrylate medical adhesive, amount of the natural antioxidant is 30-1000ppm of total weight of cyanoacrylate medical adhesive. A1: an alkyl cyanoacrylate compound and/or alkyl ether cyanoacrylate compound, wherein the alkyl cyanoacrylate compound comprises one or more compounds of methyl cyanoacrylate, ethyl cyanoacrylate, isobutyl cyanoacrylate, n-butyl cyanoacrylate, n-octyl cyanoacrylate, or isooctyl cyanoacrylate; the alkyl ether cyanoacrylate compound comprises one or more compounds of methoxy methyl cyanoacrylate, methoxy ethyl cyanoacrylate, methoxy butyl cyanoacrylate, methoxy octyl cyanoacrylate, ethoxy methyl cyanoacrylate, ethoxy ethyl cyanoacrylate, ethoxy butyl cyanoacrylate, or ethoxy octyl cyanoacrylate; and A2: an alkyl ester cyanoacrylate compound, wherein the alkyl ester cyanoacrylate compound comprises one or more compounds of methyl lactyl cyanoacrylate, ethyl lactyl cyanoacrylate, propyl lactyl cyanoacrylate, butyl lactyl cyanoacrylate, pentyl lactyl cyanoacrylate, hexyl lactyl cyanoacrylate or isooctyl lactyl cyanoacrylate; C1: an anion polymerization inhibitor, wherein the anion polymerization inhibitor comprises a strong acid substance selected from perchloric acid, permanganic acid, sulfuric acid, methanesulfonic acid, p-toluene sulfonic acid, hydrofluoric acid, sulfonic acid or their compositions; C2: a gas polymerization inhibitor, wherein the gas polymerization inhibitor is acidic gas selected from hydrogen chloride, boron trifluoride, sulfur dioxide, nitrogen dioxide or their compositions; C3: a free radical polymerization inhibitor, which comprises a quinone polymerization inhibitor with smaller steric hindrance and a quinone polymerization inhibitor with larger steric hindrance; the quinone polymerization inhibitor with smaller steric hindrance comprises one or more compounds of hydroquinone, p-hydroxyanisole and p-dimethoxybenzene; the quinone polymerization inhibitor with larger steric hindrance comprises one or more compounds of butyl hydroxyanisole, 2,6-di-tert-butyl-4-methylphenol, tert-butyl hydroquinone(TBHQ), 2,5-di-tert-butyl hydroquinone(DBHQ), p-tert-butylcatechol, 1,1-diphenyl-2-trinitrophenyl hydrazine(DPPH); C4: a natural antioxidant, wherein the natural antioxidant is phytic acid;