Abstract: Fourteen varieties of chewing suagrcane were selected for the determination of their four physiological anti-oxidation indices,including carotenoid content,activities of superoxide dismutase,peroxidase,and catalase,at four growth stages.From the indices the anti-oxidation capacities of the species were estimated by analyzing their corresponding subordinate function values.The results indicated that Minxuan 703 had the highest anti-oxidative capacity and chewing sugarcane Jinhua the lowest among the 4 varieties.