The Brillouin erbium-doped fiber laser is a novel kind of fiber laser with multi-wavelength output, which can produce a laser comb with spacing of 0.08 nm (10 GHz) using a combination of Brillouin gain and linear gain in erbium-doped fiber. The stabled 15-wavelength output are obtained with the Brillouin pump of 1.7 mW and 980 nm-pump of 300 mW. The laser can be utilized in optical sensor, spectrum analyser and deuse wavelength division multiplexer system as laser source. The experiment also demonstrates that the number of output wavelength will increase when 980 nm pump increase and the power of multi-wavelength output mainly comes from the EDFA gain with little influence from Brilloum gain.