Six steroidal saponins are isolated from Anemarrhena asphodeloides Bunge (Liliaceae), a traditional chinese medicine, and named Anemarrhenasaponin I (An-I), Anemarrhenasaponin Ia (An-Ia), Timosaponin B-I (TB-I), Timosaponin B-II (TB-II), Timosaponin B-III (TB-III), and Timosaponin A-III (TA-III).