Abstract:From the fibrous roots of Veratrum mentzeanum Loesn. f., with two new steroidal a1kaloids, veratramine N-oxide (2 ) and 3 --angeloyl germine (5 ) were isolated. In another four known ateroidal alkaloids, veratramine (1 ), veramiline (3 ), 3, 15-diangeloyl germine (4 ), solanidine (6 ), and β-sito- stero1, β-sitosteryl stearitate, daucosterol, stearic acid and cerotic acid were isolated too.