The invention discloses a folding stairs-climbing trolley which comprises a supporting frame. Two insertion columns at the lower end of the supporting frame penetrate slide sleeves, inner slide sleeves, supporting sleeves, toothed pipe sleeved, torsion springs and foot stands sequentially. Tail ends of the two insertion columns at the lower end of the supporting frame are rotationally connected totwo ends of a shovel plate. Lower ends of supporting seats are connected to lower portions of rotating blocks and positioned on upper sides of joints of the foot stands and the rotating blocks. Triangular supports are connected to upper ends of the rotating blocks, and rollers are rotationally connected to three ends of each triangular support. The folding stairs-climbing trolley has advantages that by arrangement of the rollers, a function of traveling on stairs can be realized; due to rotatability of the supporting sleeves and the foot stands, the triangular supports on two sides can be conveniently folded inwards to realize a roller collection function, and a trolley storage space is saved; upper ends of the foot stands and lower ends of the toothed pipe sleeves are provided with bevelports, and the torsion springs are arranged in the foot stands, so that the triangular supports can be unfolded conveniently under the rotating thrust action of the torsion springs.