Abstract:Liriope polysaccharide，which was one of the main active components of Liriope spicata var.prolifera indigenously cultivated in Xiangyang of Hubei，was widely used in clinical medicine research，development of health care products and food production.In order to take full advantage of the polysaccharide resource from L.spicata var.prolifera，its potential as a natural antioxidant was discussed in this paper.And its antioxidant activity was evaluated by the α-deoxyribose method，pyrogallol autoxidation method，DPPH method，potassium ferricyanide reduction method，linoleic acid system method and ABTS method.The spectroscopic analysis results showed that polysaccharide had some antioxidant activities and positive correlations were found between its antioxidant activities and its concentration.The free radical scavenging rate of polysaccharide，except for superoxide anions was only 20%，the others exceeded 50%，especially for DPPH radical，up to 59%or so.The result indicated that the polysaccharide of L.spicata var.prolifera was a potential candidate for novel natural antioxidant.