Two new lupin alkaloids, (-)-N-(2-oxopyrrolidinomethyl)cytisine and (-)-N-(N-acetylaminomethyl)cytisine, were isolated together with 9 known alkaloids from Chinese Maackia hupehensis, which grows in the south of China. The alkaloidal constituents of M. hupehensis were shown to be comparable to those of the southern species of Japanese Maackia plants.