The invention discloses a traditional Chinese medicine preparation for treating exogenous fever, and a preparation method of the traditional Chinese medicine preparation. The traditional Chinese medicine preparation is prepared from the following crude drugs in parts by mass: 3-30g of radix bupleuri, 3-30g of herba artemisiae annuae, 10-90g of gypsum fibrosum, 3-12g of rhizoma paridis, 3-30g of radix scutellariae, 3-30g of folium isatidis, 3-30g of radix puerariae, 3-30g of rhizoma acori graminei and 3-30g of earthworm. The traditional Chinese medicine preparation for treating the exogenous fever can be prepared into granules, tablets, capsules, oral liquid, injection, or the like, thus being convenient to take and inject; the traditional Chinese medicine preparation has obvious detoxifying and cooling effects for the exogenous fever, and solves the problem that the dose of a traditional Chinese medicine is not accurate; the traditional Chinese medicine preparation is free from side effect and obvious in curative effect.