The invention relates to a luggage sorting system. The luggage sorting system comprises initial conveyer belts, a sorting rotary disc, slides, detection devices, pushing devices and a control device, wherein one ends of the initial conveyer belts are in butt joint with one side of the sorting rotary disc; one ends of the slides are in butt joint with the other side of the sorting rotary disc; the pushing devices are arranged on the edge of the sorting rotary disc; the pushing devices and inlets of the slides are oppositely arranged one by one; each pushing device comprises a plurality of pushing arms which are longitudinally and parallelly arranged and one pushing arm seat; the pushing arm seats are arranged on the outer side of the sorting rotary disc; the pushing arms are mounted on the sides, facing the slides, of the pushing arm seats; and pressure sensors are arranged at the front ends of the pushing arms. According to the luggage sorting system, the amount of the extending pushing arms can be controlled according to weight of luggage, the pushing arms extend one by one, pressure suffered by the pushing arms is sensed through the pressure sensors at the front ends of the pushing arms, whether the next pushing arm needs to extend or not is judged through the control device, and the purpose of pushing luggage is achieved.