The contents of polyphenols, total flavonoids, total flavanols and anthocyanins in bulbs, stems, leaves and flowers of wild lilies collected from nine sites in Sichuan Province were determined. The antioxidant activity was evaluated by DPPH radical scavenging, copper ion reduction ability, metal ion chelating ability and inhibition of lipid peroxide activity. The results showed that the average contents of polyphenols in bulb, stem, flower and leaf of wild lily were 3.64, 5.96, 11.40 and 13.47 mg / g, respectively, and there were significant differences in the contents of polyphenols among different organs (P<0.05); the antioxidant activity of polyphenols in leaf was the strongest, and in bulb the lowest, and the antioxidant activity of polyphenols in different organs was significantly different(P<0.05). Correlation analysis between polyphenol content and antioxidant activity in different organs of lily showed that polyphenol content was significantly positively correlated with DPPH radical scavenging ability, copper ion reduction ability and metal chelating ability(P<0.01), and the correlation coefficient was 0.57-0.99. The results showed that the polyphenol content and antioxidant activity of leaves(ranking first in comprehensive membership value) of Baoxing lily in Xinglong Township of Luding county of Ya’an city were the highest, while the bulb(ranking last in comprehensive membership value) of Baoxing lily in Xinglong Township of Luding county of Ya’an city was the lowest.