The invention relates to the technical field of traditional Chinese medicines and specifically relates to a traditional Chinese medicine composition for improving vision and a preparation method thereof. Through the combination of American ginseng, radix astragali, rhizoma acori graminei, prepared polygala root, cassia occidentalis, medlar flower, dendrobium, concha haliotidis, glossy privet fruit, semen cuscutae, bat dung, wolfberry, root of kudzu vine, fructus viticis, white paeony root, cortex phellodendri, poria cocos, rhizoma cimicifugae, prepared licorice root, radix rehmanniae preparata, fructus corni, chrysanthemum, radix bupleuri and goat horn, the traditional Chinese medicine composition has effects of reinforcing qi and nourishing blood, dredging collaterals and improving eyesight, eliminating eye fatigue, recovering vision, nourishing liver and kidney, clearing heat and promoting the secretion of saliva or body fluid, and nourishing blood and promoting blood circulation.