With the development of laser technology, the application field of laser marking machine is more and more extensive. The traditional laser marking machine is inconvenient to move, which limits the use range of laser marking machine.Portable laser marking machine has become a new force in laser marking machine. The portable optical fiber laser marking machine is designed with a portable integrated structure. The whole equipment weighs only 20kg is really convenience. It is developed by our company using the relatively advanced laser technology in the industry. Laser marking machine system is new generation . The fiber laser is used to output the laser, and then the marking function is realized through the high-speed scanning galvanometer system. The electro-optical conversion efficiency of the optical fiber laser marking machine is high. Air cooling is adopted for cooling. The whole machine is compact, with good quality output beam and high reliability. Engraving metal materials and some non-metallic materials adopt an integrated overall structure, free of optical pollution and power coupling and loss, air cooling, high efficiency, long service life and less maintenance.