A dual-wave quasi-CW fiber laser has been demonstrated at the wavelengths of 1465 nm and 732.5 nm.The radiative transition of the 1465 nm energy level was analyzed for Pr-doped fiber.The critical technologies were studied,and these technologies can make 1040 nm laser attenuate and heighten the output of 1465 nm laser.Optical coating of output mirror and resonant cavity structure were studied through the experiments.And a maximum CW output power of 33 W at 1465 nm was acquired.Based on 1465 nm laser,an intracavity frequency-doubling laser of 732.5 nm was also demonstrated by using KTP crystal and acousto-optic Q-switch.A quasi-CW red light output power of 2 W at 732.5 nm was acquired,and dual-wave output was realized.