Medical adhesive

The invention discloses a medical adhesive, and relates to the technical field of medical materials. The medical adhesive disclosed by the invention is prepared from the following components in parts by weight: 45 to 62 percent of alpha-cyanoacrylate, 25 to 40 percent of a plasticizer, 0.01 to 0.05 percent of a polymerization inhibitor, 5 to 10 percent of a thickening agent, 2.0 to 9.8 percent of a tackifier, 0.01 to 0.08 percent of an antioxidant, 0.01 to 0.04 percent of acid gas, 0.01 to 0.03 percent of a stabilizer and the balance of water, the sum of the weight parts of the alpha-cyanoacrylate, the plasticizer, the polymerization inhibitor, the thickening agent, the tackifier, the antioxidant, the acid gas and the stabilizer is 100%. According to the medical adhesive disclosed by the invention, the components are matched, so that the obtained medical adhesive has the advantages of being good in thermal stability, long in validity period, good in film-forming toughness, good in biocompatibility, proper in