The invention discloses a low-cost landing gear for logistics and a using method of the low-cost landing gear, and particularly relates to the field of logistics transportation means. The low-cost landing gear comprises a landing gear assembly fixedly arranged at the bottom of a commodity shelf; the landing gear assembly comprises a bottom plate, a center driving cavity is formed in the bottom plate, and a transmission mechanism is arranged in the center driving cavity; the outer side of the center driving cavity communicates with four branch storage cavities, the bottoms of the branch storagecavities penetrate through the bottom plate, and supporting assemblies are arranged in the branch storage cavities; and the transmission mechanism comprises a lead screw, a rotating circular plate, abevel gear set and a driving rotary shaft, and the top end and the bottom end of the lead screw are both fixedly connected with the bottom plate through bearings. When the rotating circular plate isdriven by the lead screw to move up and down, through the lever principle, V-shaped supporting legs can drive idler wheels to move up and down, then the commodity shelf can be moved and fixed, the whole low-cost landing gear is simple in structure and convenient to operate, the four idler wheels can be ascended and descended at the same time, and the commodity shelf is also moved stably.