Abstract:The components of flowers of willow were extracted by 70 % ethanol， petroleum ether， chloroform， ethylacetate ， n-butyl alcohol and water ether with different polarity respectively. The research made items like the total flavonoid content ，the total antioxidant ability， DPPH·clearance rate ， as indexes and evaluated the antioxidant ability of six kinds of extracts of flowers of Willow. The results showed that the order sequenced by the total flavonoid content from strong to weak was ：ethyl acetate extract （108.71 %） > 70 % ethanol extract （39.84 %） > n-butyl alcohol extract （34.36 %） > chloroform extract （23.39 %） > petroleum ether extract （20.97 %） > water extract （6.21 %）；and the order sequenced by the total antioxidant ability from strong to weak was ： ethyl acetate extract （16.9 U/mL） > n-butyl alcohol extract （15.79 U/mL） > 70 % ethanol extract （14.92 U/mL） > water extract（13.94 U/mL） > chloroform extract（6.04 U/mL） > petroleum ether extract（4.56 U/mL），and the order sequenced by the DPPH·clearance rate from strong to weak was ：70 % ethanol extract （93.8 %） > ethyl acetate extract（93.22 %） = n-butyl alcohol extract（93.22 %） > water extract（89.75 %） > chloroform extract（78.07 %） > petroleum ether extract（58.3 %）.Therefore，the flowers of willow's extracts in different kinds of solvents all have antioxidant effects， and the antioxidant capacity is related to the extraction solvent and the total flavonoid content.