Objective: To study the chemical components from the ethanol extract of Acori Calami Rhizoma from Hunan Province. Methods: Components were isolated and purified through various chromatographic methods and recrystallization,and identified by spectroscopic data. Results: Ten compounds were isolated and identified as follows: heptadecanoic acid( 1),monopentadecanoin( 2),syringic acid( 3),aurantiamide acetate( 4),monononadecanoin( 5),tatarine A( 6),tatanan C( 7),cerevisterol( 8),2,6-dioxopiperidin-3-yl acetate( 9) and palmatin...