Abstract: A supporting frame structure for a golf bag mainly has a head bracket attached to the top end of a golf bag, two supporting legs pivotally secured to the head bracket, a transmission block, a linking rod, two guiding shafts, two springs, two connecting rods, two coupling sleeves. The supporting legs are pivotally coupled to the head bracket by way of the coupling sleeves to which the connecting rods are pivotally connected. The coupling sleeves are also pivotally connected to the transmission block with which the two guiding shafts are limitedly engaged so as to permit the transmission block to be driven to slide up and down as the connecting rods are actuated to pivot by the supporting legs. Accordingly the linking rod secured to the transmission block can be adjusted up and down with the help of the springs. Such a structure permits the supporting frame to be operated with ease, safety and speed.