Scaling to a higher-power green laser with good beam quality is a challenge for meeting the requirements of different industrial applications. An acousto-optic Q-switched TEM₀₀ mode Nd:YLF laser using the master oscillator power amplifier (MOPA) technology is presented and demonstrated. Output power of 17.2 W and TEM₀₀ mode laser of 527 nm at 1.5 kHz with a pulse energy of 11.5 mJ is achieved. The output green laser had a Gaussian spatial profile with beam quality factors of Mx2=1.07 and My2=1.15. Z-type end-pumping structures are used for the MOPA system to ensure laser power stability. The green laser power fluctuation is <0.3  %   based on 4 h measurement data.