The invention belongs to the technical field of medicines, and discloses a composition for improving sleep and improving anoxia endurance, which comprises the following raw materials: 20-45 parts of pseudo-
ginseng, 3-10 parts of spina date seed, 3-8 parts of poria cocos, 3-12 parts of medlar, 3-16 parts of emblic leafflower fruit and 2-8 parts of
erigeron breviscapus. The preparation method comprises the following steps: S1, weighing the raw materials, and crushing the pseudo-
ginseng, the poria cocos, the Chinese wolfberry fruits and the emblic leafflower fruits; s2, soaking
semen ziziphi spinosae with NaHCO3, soaking the
semen ziziphi spinosae with
white spirit, and crushing; s3, soaking the
erigeron breviscapus in table vinegar, soaking the
erigeron breviscapus in NaHCO3, and crushing; s4, decocting the crushed pseudo-
ginseng, poria cocos, medlar, emblic leafflower fruit, spina date seed and
erigeron breviscapus to obtain a first filtrate and a first
medicine residue, and concentrating to obtain a first extract; s5, performing
ethanol reflux extraction on the decoction dregs to obtain a second filtrate and second decoction dregs, and draining the filtrate to obtain a second extract; and S6, mixing the first extract and the second extract to obtain the
traditional Chinese medicine composition. The composition disclosed by the invention has the effects of remarkably improving sleep and improving hypoxia tolerance.