Mandible bone cutting device

The invention relates to the field of medical apparatuses, in particular to a mandible bone cutting device, which comprises a bone cutting unit, wherein the bone cutting unit comprises a bone drill and a motor; the bone drill is driven by the motor; the motor is preferably a servo motor; the bone drill comprises a drill bit and a drill rod. The mandible bone cutting device is characterized in that the mandible bone cutting device is provided with a positioning unit, the positioning unit comprises an arc-shaped groove bracket, an arc-shaped bone drill positioning slide passage is arranged on the arc-shaped groove bracket, a slide mechanism is arranged on the bone drill, and is driven by the driving mechanism to drive the bone drill to slide along the arc-shaped bone drill positioning slide passage, and the drill bit is positioned in the arc-shaped groove bracket. The mandible bone cutting device has the advantages that the safety is high, the positioning accuracy is high, the bone cutting effect is good, the speed is high, the labor is saved, and the like.