Abstract:  The rats were fed theabsreact fluid of Lycii bararum, Ginsen, ginkgo leaf and Gastrodia Elata Blume (GEB)for 14 days and then their ability of hyproxia tolerance were examined the results are as follows They can prolong the time of survival .The time is prolonged that Lycii bararum (10g/kg)67.3%,GEB(1 .5g/kg)30.5%,Gimseng (0. 5g/kg)27.9%and ginkgo leaf(0.5g/kg) 10. 1% Compare with the contents of hemoglobin, MDA and the GPT acticity among the groups ofthe optimum dose,theresults showthat the four abstract fluids can enhance the abilty ofhyproxia lolerance

Key words: Lycii bararum Ginseng Ginkgo leaf Gastrodia Elata Blume Hyprozia tolerance