The characteristics of Nd∶YAG solid laser with corner cube are analyzed.According to simulation results we conclude that the cavity with corner cube is little sensitive to displacement maladjustment of corner cube and is not sensitive to the angle maladjustment of output mirror.By FresnelKirchhoff equation,we simulate the near field facula of the cavity with corner cube,which is composed of six petals and the results correspond with experiment.According to Stokes parameter,the polarization state of output light changes with the rotation of corner cube,and the ellipticity and azimuth angle are varied with the rotation angle.