Abstract:Bupleurum chinense is one of the official species of Chaihu—a famous traditional Chinese medicine.Kaempferol(1),kaempfero-3-rhamnoside(2),kaempferol-3,7-dirhamnoside(3), kaempferol-3-o-d-L-arabinofuranoside-7-o-d-L-rhamnopyranoside(4),and adonitol(5)were isolated from the aerial parts of this plant and their structures were elucidated on the basis of NMR, MS,IR and UV spectral data.