The invention discloses a silver-ion waterborne polyurethane coating adhesive with deodorant and antibacterial functions. The silver-ion waterborne polyurethane coating adhesive is prepared from isophorone diisocyanate (IPDI)/methylene diphenyl diisocyanate (MDI), polyester diol (XH-111), trimethylolpropane (TMP), 1,4-butanediol (BDO), hydroxyethyl acrylate (HEA), acrylic resin monomers, silica sol, medical stone powder, mica powder, a dispersing agent, an antibacterial agent, a defoaming agent, a wetting agent, a silver-ion agent and purified water. The silver-ion waterborne polyurethane coating adhesive with the deodorant and antibacterial functions has excellent adhesive force, high hardness, corrosion resistance and water resistance, furthermore, weather resistance, wear resistance, heat resistance and flame retardant propertyare excellent, the processing property is good, and a coating after curing and film forming is excellent in mechanical property, adopts silver ions for deodorization and sterilization, has good antibacterialcapacityand has no side effects on a human body.