Lamp-pumping (YAG) laser marker takes Kr lamp as pumping source, and uses radiating Nd:YAG crystal to produce a great deal of contra-rotating particles, which release 1064nm great impulse laser through the modulation of acoustic-optical switch; And the laser, running across the F-Q lens, focuses on the workpiece's surface then makes it oxidized and gasified instantly by dozens of Watt laser energy within few square microns; Thus, the laser-burned mark is forever kept.