The invention discloses a forging device, which comprises a bearing seat, a rack, a forging hammer rod and a cam driving device, wherein a forging region for placing a workpiece is formed at the upperend of the bearing seat; the rack is arranged on the bearing seat; the forging hammer rod extends in a vertical direction and is movably installed on the rack in the vertical direction, and the lowerend of the forging hammer rod directly faces the forging region; the cam driving device comprises a driving cam rotatably arranged on the rack along a horizontal axis, the driving cam is arranged above...