Using the third harmonic radiation of a YAG: Nd laser Radiation as excited light, we have observed the ultraviolet stimulated Raman scattering in optical fiber. The peak-wavelengths of stimulated Raman scattering were identified which distributed at 361.0, 372.2 and 379.1 nm. The corresponding scattering elements of separate peak of stimulated Raman scattering spectrum were analysised.