Laser drilling machine

The invention discloses a laser drilling machine. The laser drilling machine comprises a laser device, a laser collimation and beam expansion optical system, a focusing optical system, a machining platform and a laser drilling machine control system. The laser drilling machine control system controls the relative positions of the focused laser beams and the machining platform, a protective cover is installed outside the laser (1), the machining platform is located at the bottom of the laser, the bottom of the protective cover makes contact with the upper end face of the machining platform, andthe lower end of the protective cover surrounds the protective cover by a circle and protrudes outwards to form an installation part. The laser drilling machine is simple in structure, the outer partof the laser can be effectively covered by the protective cover and a rubber ring; scrap iron is prevented from splashing to the outside, the laser is cooled through wind energy generated by a cooling fan, the generated scrap iron is blown to laser light through the wind energy, the scrap iron is vaporized again by the laser light, the amount of the scrap iron is greatly reduced, meanwhile, lightcan be effectively blocked through the protective cover, so that discomfort of eyes is avoided.