A game racket handle is adjustable in length and is composed of a main body, a jacket, and a bolt. The main body is fastened at one end thereof with a game racket shaft and provided at other end thereof with a threaded hole. The jacket has a closed end and an open end. The closed end is provided with a through hole. The jacket is movably fitted over the main body such that the jacket can displace along the direction of the longitudinal axis of the main body. The bolt is fastened pivotally with the closed end of the jacket and engaged with the threaded hole of the main body for regulating the position adjustment of the jacket in relation to the main body.
