tIn order to find new sources of natural antioxidants, antioxidant capacities of infusions from 223 medic-inal plants were systemically evaluated using ferric-reducing antioxidant power (FRAP) and Troloxequivalent antioxidant capacity (TEAC) assays, and their total phenolic contents (TPC) were measured byFolin–Ciocalteu method. A very weak correlation (R2= 0.1563) between the TEAC value and the FRAP valuesuggested that the components capable of scavenging free radicals could be different from those reducingoxidants in these plants. A significant correlation (R2= 0.7549) between TEAC value and TPC as well asa very weak correlation (R2= 0.1966) between FRAP value and TPC implied that phenolic compounds inthese plants could be the main components contributing to scavenging free radical activities, but not beresponsible for reducing oxidant abilities. Several plants possessing the high antioxidant capacities andTPC have been screened out, which could be potential rich resources of natural antioxidants, and couldbe developed into herbal infusion, functional food or pharmaceuticals for prevention and treatment ofdiseases caused by oxidative stress.