Abstract:Our experiment has shown that the aqueous extract of Centipede can markedly decrease the contents of lipid peroxide in the serum as well as lipofuscin in the liver tissues and brain tissues of rats,enhances the activity of superoxidedismutase in erythrocyte and glutathione in blood ,but has no action on the lipofuscin in the heart. In addition ,the ex-tract is able to increase the weight of spleen and thymus.