The invention relates to a novel cyanoacrylate medical adhesive and preparation method and application thereof, the main components of the medical adhesive is composed of alkyl cyanoacrylate and / or alkoxy cyanoacrylate and lactyl cyanoacrylate, and by adding a novel stabilizer system, the stability of the novel cyanoacrylate medical adhesive product in the invention increases substantially, the product can be stored and transported at room temperature, degradation performance of the product was greatly improved, the main technical indicators of product such as curing time and mechanical properties can meet the clinical needs, and the user experience of the product such as adhesive film flexibility is greatly improved, so the cyanoacrylate medical adhesive is an widely used surgical hemostatic materials.