Stimulated Raman scattering in Ba(NO3)2 crystal at ultraviolet band was studied by building the flashlamp-pumped E-O Q-switched all-solid-state Raman laser experiment system,and the fundamental wave is 1064 nm with the single pulse energy of 1 J and the pulse width of 9 ns,then the single pulse energy of 140.76 mJ at 355 nm with the pulse width of 8 ns was obtained through second harmonic generation of KTP crystal and third harmonic generation in BBO crystal. And 355 nm is used to be the pumping source to cause stimulated Raman scattering in Ba(NO3)2 crysal to acquire the Raman scattering light. It′s proved to be 368.15 nm by a spectrometer,with the pulse width of 7.1 ns,frequency shift of 1006 cm-1 and the gain coefficient of 78.51 cm/GW.