The elevator industry has high requirements for the cutting edge of stainless steel materials, and the strength of stainless steel materials is large, the tangential stress is large, the plastic deformation is large, and the cutting force is large. The laser cutting machine has a series of advantages such as good beam quality, high precision, small slit, material saving, smooth cutting surface and safe operation, and the finished product is smooth after processing, no burr, no secondary processing, and the quality and efficiency are greatly improved.