Portable laser marking machine is third-generation laser marking systems successfully researched and developed by employing cutting-edge laser technologies in the world. The optical fiber laser is employed for laser output, and super high-speed scanning system is employed to achieve marking. The optical fiber laser markers feature high efficiency in electrical/optical conversion, and wind cooling is employed. The whole system is small in size, with high beam output quality, high reliability, super long service life, and saving energy. The markers are used for fields with higher requirements in depth, smoothness and precision, and they are used to engraving metallic and non-metallic materials, for example, stainless steel decorating parts for handsets, clocks, watches, moulds, ICs, handset buttons, etc. The markers are able to engrave beautiful images on metallic and plastic surfaces. The marking speed is 3~12 times of first and second generation of semiconductor markers.