The invention belongs to the technical field of C08G, and specifically relates to an antibacterial thermoplastic polyurethane elastomer for air cushions, its preparation method and application. The antibacterial thermoplastic polyurethane elastomer is prepared from the following raw materials by weight percentage: 50～60% polyester polyol, 30～40% isocyanate, 5～10% chain extender, and auxiliary agents supplementing to 100%. The product achieves an antibacterial rate of over 99%, effectively preventing bacterial breeding caused by sweat and stuffiness when applied to shoe air cushions. It has excellent processability, tear strength and tensile properties, avoiding structural damage from external forces and extending the service life of shoe cushion products.

Area Code: CN

Application Number: CN202111067803.5