A golf bag
cart is disclosed, comprising a bottom
cart stand, having a link segment at its top, and a bag base at its bottom, where the bottom
cart stand is provided with a slider thereon; an upper cart stand, in pinned connection with the link segment at its bottom; a rear wheel frame, fixed at each of both sides of the link segment, where the two rear wheel frames and the bottom cart stand together form a
pyramid, and the bottom end of the rear wheel frame connects to the rear wheel; a linkage, set up between the upper cart stand and the slide; a draw pole, set up between the slide and the rear wheel frame; a front wheel, positioned under the bag base, having a folding joint, which could level the front wheel; and a lock mechanism, having a core, in pinned connection to the top of the slider, where the upper cart stand and the bottom cart stand are thus fastened to each other; the rear wheels could be spread up, subject to the linking among the linkage, the slider, the draw pole and the rear wheel frame; through the
pyramid, formed by the two rear wheel frames and the bottom cart stand, the cart is able to stand up on the ground with better backing, which sufficiently holds the bag load, to keep the cart sustainable and to avoid deforming into collapse.