Laser cutting machine is an invisible beam of light instead of the traditional mechanical knife, with high precision, fast cutting, not limited to the cutting pattern restrictions, automatic layout to save materials, smooth cut, low processing costs and other characteristics, will gradually improve or replace the traditional metal cutting process equipment. The mechanical part of the laser cutter head has no contact with the workpiece, and will not cause scratches on the surface of the workpiece during the work; the laser cutting speed is fast, and the kerf is smooth and flat, generally without subsequent processing; the cutting heat-affected zone is small, and the deformation of the plate is small, with a narrow kerf; the kerf is free of mechanical stress, and there is no shear burr; the processing precision is high, and the repeatability is good, and it does not damage the surface of the material; the numerical control programmable, and can be processed with any planar diagram, and the whole plate of the large size can be cut, without opening a mold. The whole plate can be cut without opening mold, which is economical and time-saving.