Abstract: One hundred and eighty avin broilers were divided into 6 groups with oneway random design, each group including 3 replicates (10 briolers per replicate) .The first group was the control group, fed with cornsoybean and the Second to 6th groups were experimental groups, fed with basal diet supplement with 5，10，50，100，500 mg/kg Echinacea respectively. The whole experimental period was 7 weeks. The objective was to study the effects of different concentration Echinacea on antioxidant function and production performance. The experimental results showed that: The Echinacea abstract with 50mg/kg had the highest free radical scavenging effects on hydroxyl free radicals，and the activities of SOD，GSHPx were enhanced，the content of MDA in blood serum of the broilers was decreased. But there is not significantly different in the production performance ,just a certain improvement.

Key words: echinacea; antioxidant function; production performance; broiler