The experimental study of gain flattening dispersion compensation wide-band Fiber Raman Amplifier (RFA) was presented by using 1445nm high power Fiber Raman Laser (FRA) as pump and two different source combinations as signals.One used broadband ASE light source and WDM-emulator as Dense Wavelength Division Multiplexing (DWDM) signal source,and the other used four-channel External Cavity Laser (ECL) and filter type Wavelength Division Multiplexer (FWDM) as signal source.Moreover,Chirped Fiber Bragg Grating (CFBG) as gain flattening filter was designed to flatten actually tested gain spectra.Wide-band FRA with bandwidth from 1519nm to 1574nm (55 nm) was successfully obtained.Its average gain and gain ripple could reach 15.2dB and ±0.8dB respectively.It provides a new solution for wideband FRA design within 60nm.