Abstract:A new named dawodensin A (1 ) and a known, xindongnin A (2), dit-erpenoids were isolated from the leaves of Rabdosia dawoensis (Hand.-Mazz.) Hara, Which collected at Xing County, Henan Provice, and their structures were determined by spectroscopic analysis. Dawoensin A is elucidated as ent-lla-hy6roo-xyl-3α, 6β, 7α-triacetoxy-16-Kauren-15-one.