Abstract: This paper deals with antioxidant ability of methyl alcohol extract of Himantormia lugubris and Ramalina terebrata from Antarctic. The antioxidant ability detected by the linoleic acid, DPPH free radical and reducing power systems and compared with that of commercial antioxidant VC and BHA. The result showed that the lichens collected from Antarctica exhibited comparatively high antioxidant activities. The antioxidant activity was concentration-dependent. In the study, Himantormia lugubris apperanted great inhibitory ratio of lipid peroxidantion and great scavenging ratio of DPPH free radical, Ramalina terebrata showed high scavenging activity on DPPH free radical. This indicated that there is else substance with high antioxidant activity in the extract from Himantormia lugubris, which should be further studied.