Laser marking is non-contact, non-pollution and permanence so it will be used widely. Laser marking is related
essentially with the CNC machining. It is proposed that the control method and algorithm in the CNC system can be
applied to the laser marking. The comparability of them is summarized on the base of analyzing the composition
characters of the open-architectured CNC system and the laser marking. The mode of Laser marking includes scan mode
and path one which are researched in detail in this paper. For path mode, the steps and code translation of CNC
machining are applied. This method is not only useful to settle the edge effect, but also improve the marking efficiency.