Herein, we report an efficient wavelength-locked 914-nm laser diode in-band pumped intracavity frequency doubling green laser. In our experiment, a wavelength-locked 914-nm laser diode is used as the pumping source to realize good pump uniformity and efficiency and substantially reduce the thermal effect of the laser. A 532-nm laser output with high beam quality is obtained. At a pump power of 18 W and a repetition rate of 130 kHz, the maximum power output of 6.7 W for green laser is obtained. For this pumping power, the conversion efficiency is 37.2%, which corresponds to a conversion efficiency of 60% for absorbed pumping.