［Objective ］ To improve the deep processing and high-value utilization of citrus peels.［Methods ］ The active components of the peel flavedo （C.aurantium var.daidai Tanaka,C.Kawachiensis and C.Sudachi ） were extracted with different solvents,the antioxidant activity was determined by DPPH and ABTS free radical scavenging rate,and the antibacterial activity was determined by inhibition zone，microbroth dilution method and antibacterial kinetics.［Results ］ It was showed that the yield,active substance content,antioxidant activity and antibacterial activity of methanol extract were better than those of petroleum ether and n-hexane.The order of antioxidant activity of the extracts was C.Sudachi >C.aurantium var.daidai Tanaka >C.Kawachiensis,and the DPPH and ABTS free radical scavenging rates of methanol extract of C.Sudachi were 83.86% and 69.14%,respectively.Extracts could inhibit four foodborne pathogenic bacteria,among which had the most significant the inhibitory effect on Staphylococcus aureus （P<0.05）.The order of antibacterial activity of flavedos extracts was C.Sudachi >C.aurantium var.daidai Tanaka >C.Kawachiensis,and the methanol extracts of C.Sudachi had the strongest antibacterial effects,of which the diameters of the inhibition zone against Escherichia coli,Salmonella and Staphylococcus aureus were 10~15 mm.［Conclusion ］ The flavedo of citrus peel has strong in vitro antioxidant activity and antibacterial activity,methanol is the best extraction agent for the extraction of the flavedo ’s active substances.