An all-solid-state quasi-continuous-wave (QCW) green laser was developed by use of plane-plane cavity with tow-rod birefringence compensation technology,LBO crystal was used for second harmonic generation.Two orthogonal acousto-optic Q-switches were used to sustain fully holding of the pump gain.120 W at 1064 nm wavelength was achieved when the repetition rate was 15 kHz,and the 532 nm average output power is 71W with a pulse width of 250 ns and a conversion efficiency of 57.5% from the 1064 nm light to the green laser.The 532 nm average output power is 69W at a repetition rate of 10 kHz and a pulse width of 200 ns.