Provided is a laser processing device capable of preventing laser light from leaking out to the outside of the housing by emitting the laser light to the processing target with the camera detached. The laser processing device includes a laser generator; a scanning optical system for scanning the laser light with respect to a workpiece; a housing frame for accommodating the scanning optical system; a camera for photographing the workpiece, the camera being removably attached to the housing frame and having a light receiving axis branched from an emission axis of the laser light; a camera cover removably attached to the housing frame to cover the camera; a limit SW for detecting detachment of the camera cover from the housing frame; and a laser output control section for prohibiting the emission of the laser light to the workpiece based on a cover detection signal.