Disclosed is a golf club group comprising a plurality of golf clubs having the same number, in which each golf club shaft of the golf club is composed of a plurality of bias layers and a plurality of straight layers which are wind-formed so that it may be shaped into a tapered circular pipe having a diameter which gradually larger towards to is a butt end. The plurality of golf club shafts have approximately the same flexibility, assuming that each golf club shaft is constructed so that each straight layer may have the same thickness over the total length of the shaft, a distribution curve of flexural rigidity the shaft is set as a reference curve. Then, a tangent line is drawn at the position Q of the reference curve located 300 mm apart from the butt end, whereby golf clubs are categorized in the following manner: the golf club for a swinger is the golf club having the golf club shaft of which the distribution curve of flexural rigidity in a butt side portion extending from the position Q to the butt end is within a region on or lower than the tangent line, and the golf club for a hitter is the golf club having the golf club shaft of which the distribution curve of flexural rigidity in the butt side portion is within a region higher than the tangent line.