For the double clad fiber laser, differ from ordinary fiber laser, the requirement of a single mode for pumping the fiber laser is needless, furthermore, the pump beam coupling into fiber along nearly whole fiber, consequently, the laser conversion efficiency is improved. In this paper, a novel Yb3+-doped multi-wavelength double clad laser pumped by 976 nm laser diode is presented. The output wavelength are 1085, 1090, 1095 and 1100 nm. The laser exhibits 0.33 nm line-width, 1.2 W laser out power, 20 dB signal-to-noise (SNR) and 52% slope efficiency.