The bio-active constituents from Achnatherum inebrians were obtained. It was extracted with 95% and 60% alcohol distributed by different solvents, isolated via column chromatography on silia gel and purified by crystallization. The structures of the constituents were indentified by means of IR^MS^NMR and chemical methods respectively. Eight compounds were isolated and elucidated as adensine(i), veratroylzygadenine(2) ,germerine(3), hexadecanoie-2,3-dihydroxyproyl ester( 4), 3-O-glucoside-veratramine (5), dausterol (6) 4', 6,7-trihydroxy-3', 5' -dimeoxy flavone(7) , sucrose(8). All the compound were isolated for the first time from the plant.