A new steroidal alkaloidal glucoside, C34H57NO7, mp 284-286 degrees C, named ningpeisinoside, was isolated from the bulb of Fritillaria ningguoensis S.C. Chen et S.F. Yin. Based on preparation of derivatives and IR, MS, 1HNMR, 13CNMR spectral studies, the structure of ningpeisinoside has been established as N-methyl-5 alpha-veratranine-6-oxo-3 beta-O-beta-D-glucoside(I).