A new 24-nor-lupaneglycoside was isolated from the leaves of Acanthopanax trifoliatus. Based on spectroscopic data its chemical structure was determined as 24-nor-11$alpha$-hydroxy-3-oxo-lup-20(29)-en-28-oic acid 28-Ο-$alpha$-L-rhamnopyranosyl-(1$ ightarrow4)-eta-D-glucopyranosyl-(1 ightarrow6)-eta$-D-glucopyranosyl ester.