The fiber laser system is highly integrated, compact and compact in structure, and has a laser generating system integrated inside, which is easy to operate. Using high permeability blue film field mirror, laser transmittance up to 99%, so that the laser marking machine focus finer, no deformation, marking more exquisite. The optional range is 110*110mm to 300*300mm. The advanced servo control algorithm and efficient photoelectric sensing positioning technology can meet most of the application requirements in terms of performance and positioning accuracy and increase the double red automatic focus system.