A new triterpenoid,possessing a lanost-9(11)-3-one skeleton,was isolated from the roots of Kadsura coccinea,based on the spectral analysis,its structure was elucidated as 3-hydroxy-12-acetoxycoccinic acid. A new triterpenoid, possessing a lanost-9 (11) -3-one skeleton, was isolated from the roots of Kadsura coccinea, based on the spectral analysis, whose structure was elucidated as 3-hydroxy-12-acetoxycoccinic acid.