This invention discloses a pressure-sensitive adhesive for rubber layer on table tennis racket. The adhesive is composed of: solvent 60-90 wt. %, rubber 8-20 wt. %, and thickening resin 2-20 wt. %. The solvent is 1, 8-terpadiene, or a mixture of 1, 8-terpadiene and one or two of ethyl acetate, methanol and ethanol. The rubber is one or two of nonpolar rubbers such as natural rubber, and polar rubbers such as polychlorobutadiene, or rubber compound. 1, 8-terpadiene used as the solvent has high solvency for rubber layer on table tennis racket, and is harmless and environmentally friendly. The adhesive, when used on rubber layer on table tennis racket, has such advantages as rapid swelling, long elasticity-enhancing effect, and simple process.