To provide a metallic piece cutting device capable of removing metallic pieces welded to a metallic plate, reducing working burdens and improving working efficiency with one device, and a metallic piece cutting system with this metallic piece cutting device.

This metallic piece cutting device 1 mainly has a support frame 10 comprising a base frame 11 having horizontal beams 11a, 11a and a connection beam 11b and a pair of support columns 12, 12, fixing means 30, movement means 40, contact means 70, and transfer means 20. Also, this metallic piece cutting system 200 has the metallic piece cutting device 1 and a cooling and dust-collecting device 110.