This　study　aimed　at　evaluating　the　antioxidative　activity　of　crude　hsian-tsao　extracted　by　acetone　and　the　Fraction　E　purified　by　AB-8　macroporous　resin　chromatography　column.　The　antioxidative　activities,　including　the　DPPH　radical-scavenging　effects,　Fe2+-chelating　ability,　and　reducing　power　as　well　as　the　inhibition　of　lipid　peroxidation,　were　studied.　Results　demonstrated　that　both　crude　extract　and　Fraction　E　were　more　effective　in　the　inhibition　of　lipid　peroxidation　and　the　DPPH　radical-scavenging　ability　than　that　in　the　Fe2+-chelating　ability.　Based　on　the　inhibition　of　lipid　peroxidation,　the　order　of　the　antioxidant　activities　was　follows:　Fraction　E　＞GA＞　crude　extract　＞Vc.　Fraction　E　seemed　to　be　a　promising　product　of　natural　antioxidants　enriched　with　phenolic　compounds.　©　(2012)　Trans　Tech　Publications,　Switzerland.