The invention belongs to the technical field of beauty products and discloses mask taking cape jasmine flower extract as a main raw material and a preparation method. According to the preparation method, substances including the cape jasmine flower extract, glycerol, polyglycerol-10, niacinamide, hydroxyethyl cellulose, allantoin, sodium hyaluronate, sodium polyacrylate, PPG (Polypropylene Glycol)-5-laureth-5, simmondsia chinensis seed oil, caprylic/capric triglyceride, glyceryl acrylate/acrylicate copolymer, propylene glycol, PVM/AM copolymer, hydrolyzed oat protein, herba portulacae extract,acetyl hexapeptide-8, caprylyl glycol, panthenol, fargesia dracocephala leaf /stem extract, lotus flower extract, nymphaea alba flower extract, arginine ferulate, 1-methylhydantoin-2-imide, acrylic/C10 to C30 alcohol acrylate cross-linked polymer potassium salt, DMDM hydantoin and the like are weighed. According to the mask disclosed by the invention, the generation of melanin can be radically inhibited and anti-oxidization can be realized; the synthesis of collagen is facilitated.