Using optical fiber laser, laser output after high speed scanning galvanometer system implementation marking function. Optical fiber laser marking mechanical and optical conversion efficiency is high, greatly saves the electricity. More than 100000 hours of trouble-free laser output. An air-cooled cooling, the cooling performance is good, does not need to air conditioning and water circulation system, optical fiber can be coiled, small equipment volume, the output beam quality is good, cavity no optical lenses, with free adjustment, free maintenance, high reliability performance. Configure automatic rotary fixture, which can realize rotate 360 degrees marking.