The invention discloses a laser engraving machine, comprising a casing, a processing platform, a laser engraving head, a laser emitter, and a red light projector, the platform is disposed in the casing, and has a lateral moving trajectory and a longitudinal moving trajectory; the longitudinal trajectory is disposed on one side of the platform, the lateral trajectory is spanned thereon; one end of the lateral trajectory is connected with the longitudinal trajectory, the other is engaged with the platform side; the head is disposed on the lateral trajectory and can move along it. The invention has reasonable structure and convenient use. By adding a working panel, the device can process hard and soft material products, meeting more requirements; by changing the external fan to the built-in fan and smoke exhaust chamber, the installation is simple, the exhaust effect is better, while the proportion of damage during transportation is reduced.