Objective: To study on the antioxidant activity of Schisandrae Chinensis Fructus red pigment. Method: With UV-V is spectrophotometry

compared with vitamin C(VC) and vitamin E(VE)

the antioxidant activity of Schisandrae Chinensis Fructus red pigment was studied by measuring its scavenging effects on 1

1-Diphenyl-2-picrylhydrazyl radical (DPPH ·)

hydroxyl radical(· OH) and superoxide radical(O2-·). Result: Antioxidant activity of Schisandrae Chinensis Fructus red pigment with EC50as index

the results were 27.95 mg · L-1(scavenging DPPH ·)

98.03 mg · L-1(scavenging · OH) and 154.27 mg · L-1(scavenging O2- ·). Its scavenging effects on radicals were not significant with VC

but much stronger than VE. Conclusion: Schisandrae Chinensis Fructus red pigment has strong antioxidant activity and shows a significant dose-effect relationship.