The influence of tartary buckwheat extra cts (TBE) on blood sugarof hyperglycemia rat caused by tetraoxygen pyrimidine a nd blood lipid of hyperlipidemia animal were observed.The results showed that TBE had no influence on the blood sugar of normal rats, high and middle dose of TBE could significantly decrease blood sugar of tetraoxygen pyrimidine caused hyperglycemia big rats ,and improved sugar tolera nt dose of tetraoxygen pyrimidine caused hynerglycemia.High dose of TBE could s ignificantly decrease the concentration of total cholesterol of blood serum of rat,and middle dose of TBE could significantly decrease the concentration of total triglyceride of blood serum of rat.