Fiber laser cutting machine has good beam quality and high power density, which is very conducive to the absorption of metal materials and has excellent cutting ability. The laser beam is focused into very small light spots, achieving a high power density at the focal point. The material is quickly heated to the point of gasification, and the light conversion efficiency is high, reaching over 30%, which can significantly save power consumption during operation. Applied to cutting precision products such as medical devices, consumer electronics, sensor devices, aerospace, new energy lithium batteries, fuel cells, automotive industry, precision equipment, gift accessories, high and low voltage electrical appliances, etc.