Abstract:Hydroxyl free radical scavenging ratio was used to evaluate the antioxidant activity of the vine tea liquor.To find the optimal brewing condition，the efect of brewing time，brewing times，brewing temperature and brewing water quality on hydroxyl radical scavenging activity of vine tea liquor was studied by salicylic acid method，and the antioxidant activities of vine tea and green tea were also compared.Meanwhile，the pyrogallol autoxidation assay was used to evaluate the antioxidant activity of vive tea by suppressing the superoxide anion free radical.Finally，the results showed that the first vine tea liquor obtained with deionized water at 80℃ for 20 min would have the best antioxidant activity，the hydroxyl radical scavenging ratio of 0.5 mL the vine tea liquor could achieve 81.9%and a dose-dependent manner was suggested，also compared with green tea，the results showed that the vine tea liquor had much better and more stable antioxidant activity.