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.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 ultraviolet laser marking machine adopts air-cooled laser, which is smaller in size, lighter in weight, more beautiful in appearance, strong in electromagnetic interference resistance, high in thermal management efficiency, convenient in installation, maintenance free operation, low in use cost, low in power consumption, no water cooling system, more convenient in use, power saving and energy saving. The laser repetition frequency is adjustable within the range of 20KHz-150KHz, and the laser beam quality M square factor is less than 1.2. Integrated design, internal integrated drive circuit board, external access to 12V regulated power supply can obtain laser output. No adjustment frame manufacturing process, stable mechanical performance of the laser, long-term stable operation, environmentally friendly marking, long-term color fastness, in line with international standards.