The invention discloses a city household rubbish sorting machine. The city household rubbish sorting machine comprises a shell body, the upper portion of the shell body is provided with a material inlet, the lower portion of the shell body is provided with a heavy rubbish outlet and a light rubbish outlet, the material inlet is arranged above the heavy rubbish outlet, two sides of the shell body are provided with shell body sliding grooves, the shell body sliding grooves are provided with sliding plates capable of sliding, a driving shaft and a driven shaft which can rotate in the horizontal plane are parallelly arranged on the sliding plates, the driving shaft and the driven shaft are in transmission connection through gears and of opposite rotating directions, the periphery of the driving shaft is provided with a plurality of chipping grabbing needles in an interlaced manner, the periphery of the driven shaft is provided with a plurality of chipping unloading needles in an interlacedmanner, the side surface of the shell body is provided with a motor which is in transmission connection with the driving shaft, the shell body is provided with connection rods, one ends of the connection rods are hinged to the shell body, and the other ends of the connection rods are in eccentric hinge joint with the driven shaft. The purpose of the invention is to provide the city household rubbish sorting machine, by means of the rubbish sorting machine, paper chippings, plastic bags and the like in city household rubbish can be rapidly sorted out, secondary recovery treatment performed onthe city household rubbish is facilitated, and meanwhile, the sorting machine is small in occupation space and low in cost.