[Objective] The purpose aimed to study the optimal extract condions of flavonoids from Artemisinin and its antioxidative activity.[Method] The extracting conditions of flavonoids from Artemisinin were optimized by the orthogonal experiment.The antioxidative activity of the crude extract matter was mensurated.[Results] The results indicted that the optimum extracting conditions were described as follows: ethanol volume scores 90%,extracting time 3.0 h,the solidliquid ratio 1 g∶40 ml,extracting temperature 70...