Abstract:Liriope spicata was used as the raw material，soxhlet extraction method was used to extract flavonoids from Liriope spicata.Antioxidative activity（vitamin C as a positive control）and antibacterial activity of flavonoids were studied.The results showed that hydroxyl radical scavenging rate and DPPH free radical scavenging rate of flavonoids were stronger than that of vitamin C，while the reducing power and superoxide anion free radical scavenging rate were weaker than vitamin C，and in a certain concentration range，the antioxidant activity of flavonoids increased with its concentration.Flavonoid exhibited a certain bacteriostatic effects on staphylococcus aureus and bacillus subtilis，which had the stronger antibacterial effect on staphylococcus aureus with the maximum inhibitory ring diameter 18.80 mm，and the minimum inhibitory concentration of both staphylococcus aureus and bacillus subtilis was 7 mg/mL.In short，flavonoids'antioxidant and antibacterial activities could provide support for the development of flavonoids from Liriope spicata.