Two new oleanane-type triterpene oligoglycosides, pisumsaponins I and II, and two new kaurane-type diterpene oligoglycosides, pisumosides A and B, were isolated from the immature seeds (green peas) of Pisum sativum L. together with soyasaponin I, bersimoside I, dehydrosoyasaponin I, and their 6'-methyl esters. The structures of pisumsaponins and pisumosides were determined on the basis of chemical and physicochemical evidence as 22-O-malonylsoyasapogenol B 3-O-α-L-rhamnopyranosyl(1→2)-β-D-galactopyranosyl(1→2)-β-D-glucopyranosiduronic acid (22-O-malonylsoyasaponin I), sandosapogenol 3-O-α-L-rhamnopyranosyl(1→2)-β-D-galactopyranosyl(1→2)-β-D-glucopyranosiduronic acid, 17-O-β-D-glucopyranosyl-6β, 7β, 13β, 17-tetrahydroxy-19-kauranoic acid 19-O-β-D-glucopyranosyl(1→2)-β-D-glucopyranoside, and 6β, 7β, 13β, 17-tetrahydroxy-19-kauranoic acid 19-O-β-D-glucopyranosyl(1→2)-β-D-glucopyranoside, respectively.