The optical parts of the machine are specially used for high-speed laser marking of metal materials, the machine does not need daily maintenance, no consumables, long service life, and the machine adopts a universal air-cooling system. Optical fiber output, suitable for blackening. This machine design is mainly used for barcode marking, data matrix marking, serial number marking, technical data sheet marking, anti-counterfeiting code marking, etc. The machine has small appearance, easy to use, easy to move, save space, flexible to use and easy to operate.