The invention relates to a Chinese medicine for treating an acquired immune deficiency syndrome and a preparation method thereof. The Chinese medicine is prepared from the following raw materials in part by weight: 5 to 7 parts of prepared common monkshood daughter root, 0.2 to 0.5 part of tianxiong aconite accessory root, 10 to 14 parts of largehead atractylodes rhizome, 8 to 12 parts of fineleaf schizonepeta herb, 8 to 12 parts of cowherb seed, 12 to 17 parts of trichosanthes root, 8 to 12 parts of ephedra, 8 to 12 parts of Mongolian dandelion herb, 8 to 12 parts of violet, 12 to 17 parts of astragalus, 13 to 17 parts of American ginseng, 1 to 5 parts of Chinese caterpillar fungus, 1 to 2 parts of natural bezoar, 1 to 2 parts of musk, 13 to 17 parts of white paeony root, 8 to 12 parts of rosewood heart wood, 12 to 15 parts of desertliving cistanche, 13 to 17 parts of cibotium barometz, 13 to 17 parts of platycladi seed, 2 to 5 parts of Indian iphigenia bulb, 2 to 5 parts of golden thread, 8 to 12 parts of Himalayan teasel root, 13 to 17 parts of coix seed, 2 to 5 parts of stereocolon, 8 to 12 parts of plantain seed, 8 to 12 parts of ginseng, 8 to 12 parts of common cnidium fruit, 8 to 12 parts of Chinese eaglewood, 8 to 12 parts of eucommia bark and 8 to 12 parts of medicinal indianmulberry root. The Chinese medicine for treating the acquired immune deficiency syndrome is high in curative effect and small in toxic and side effects.