To provide a crushing apparatus having an inexpensive unit for controlling the rotation of a feed roller by easy operation.

This crushing apparatus is provided with a hydraulic motor 72 for driving a feeding means for feeding an object to be crushed to this apparatus, a flow rate adjusting unit 77 which is constituted by connecting flow rate controlling valves 81, 82 to solenoid valves 78, 79, 80 for communicating or blocking the oil paths of the valve 81, 82 and fits to a bypass line between the feeding port and the discharge port of the motor 72 and a commanding means 92 for commanding the valves 78, 79, 80 to communicate or block the oil paths.