以苦荞叶提取物为材料，通过灌胃观察小鼠血液及各脏器中的抗氧化酶活性及脂质过氧化物的变化情况。与正常对照组相比，灌胃小鼠苦荞叶提取物能明显提高其血液、肝脏和心脏中的超氧化物歧化酶和谷胱苷肽过氧化物酶的活性，降低脂质过氧化产物丙二醛的含量，但对过氧化氢酶的活性变化无明显规律。说明苦荞叶提取物中有一定量的抗氧化物质，能有效地清除体内的自由基，具有较好的抗氧化和抗脂质过氧化作用。 Tartary buckwheat leaf extract was used as material to observe the changes of antioxidant enzymes and lipid peroxides in blood and organs of mice by gavage. Compared with the normal control group, intragastric administration of Tartary Buckwheat leaf extract significantly increased the activities of superoxide dismutase and glutathione peroxidase in the blood, liver and heart, and decreased the lipid peroxidation products  malondialdehyde content, but no significant changes in the activity of catalase. Tartary buckwheat leaf extract shows a certain amount of antioxidants, can effectively clear the body of free radicals, has good antioxidant and anti-lipid peroxidation.