Objective To study the chem. constituents from the roots of Dolichos falcata.Methods The chem. constituents were isolated by column chromatog. with silica gel and Sephadex LH-20.Their structures were identified on the basis of spectroscopic anal.Results Three compounds were isolated from the roots of D. falcata and identified as 3β,23-dihydroxy-2-oxoolean-12-en-28-dioic acid 3-O-β-D-glucopyranoside (1), 3β-hydroxyolean-12-en-23,28-dioic acid 3-O-β-Dglucopyranoside (2), and 2β,3β-dihydroxyolean-12-en-23,28-dioic acid 3-O-β-D-glucopyranoside (3).Conclusion Compound 1 is a new triterpene glycoside named doliroside C and compound 2 is isolated from this plant for the first time.