The invention relates to healthcare food which has the function of increasing the anoxia endurance and a preparation method, and belongs to the healthcare food field. The active ingredient of the healthcare food which has the function of increasing the anoxia endurance is mainly made from raw ingredient medicines by weight parts as follows: gen-seng is 1 to 3 parts, red common stonecrop herb is 1to 3 parts, short stalk hoo tea is 3 to 9 parts, wolfberry fruit is 1 to 6 parts, rhizoma ligustici wallichii is 1 to 6 parts, pawpaw is 1 to 6 parts, ebony is 1 to 6 parts, and yam is 1 to 6 parts. Experiments on animals show that the healthy product has the obvious function of increasing the anoxia endurance, fully accords with homology theory of medicine and food, and is real green foods.