The laser induced damage of polarizer has been studied by use of 1064 nm laser with 10 ns pulse duration at the incident angle of 0° and 56°. The experiment results show that the damage morphology is scald and delamination for polarizer coating without SiO2 overcoat and with SiO2 overcoat when laser incident at angle 0° and 56° for S polarization light For Ρ polarization light, the damage of polarizer with SiO2 overcoat is mainly pits about 30~50 μm in size caused by polishing powder, and the pit size is almost independent on the energy density of the incident laser.