To provide a cutting device capable of laying it out in a small space and cutting many kinds of workpieces efficiently without burdening a worker with a high load.

This cutting device is composed of shelf facilities 10, 60 constituted by arranging a plurality of roller conveyors 14 in multiple steps in the vertical direction to store the workpieces 80 on the roller conveyors at each step of the plurality of steps, a lifter 50 provided in front of the shelf facilities and elevating and lowering along the shelf facilities in the vertical direction to receive the workpieces taken out of the roller conveyors at each step of the plurality of steps, and cutting machines 40, 70 provided in front of the lifter to cut the taken out workpieces. The roller conveyors are arranged so as to extend in the forward and backward directions or the lateral direction of the shelf facilities.