In this paper, the stainless stencil with 0 2 mm thickness was cut by Nd∶YAG pulse laser. The effect of laser cutting parameters on surface roughness of kerf, splash and residue of kerf surface was studied systematically. The results showed that with the increasing of repetition frequencies, power density, and pulse width of laser beam and with the decreasing of scanning speed, the kerf quality could be improved. Besides, a formula of estimating the kerf surface roughness was also presented, which can explain the experiment results well.