Abstract: The ethanol extracts from the stem of Sabia discolor Dunn were isolated and purified by silica gel and Sephadex LH-20 column chromatography. The structures of the compounds were verified by modern spectroscopy(MS, ¹H NMR, ¹³C NMR). Ten pentacyclic triterpenoids were isolated from the stem of S. discolor, and identified as 20-hydroxy-lupan-3-one(1), monogynol A(2), (20S)-3-oxo-20-hydroxytaraxastane(3), 20-taraxastene-3α, 28-diol(4), 3β, 20β-dihydroxytaraxastane(5), oleanolic acid(6), 1-oxo-erythrodiol(7), juglangenin A(8), castanopsol(9) and 1α, 3β-dihydroxyl-olean-12-en-28-oic acid(10), respectively. Among them, compounds 2, 4, 7, 8 and 9 were obtained from the genus Sabia for the first time, and compounds 1, 3, 5 and 10 were isolated from this plant for the first time.