The invention provides a traditional Chinese medicine composition for treating chicken eimeria tenella coccidiosis. The traditional Chinese medicine composition is prepared from antifebrile dichroa, rheum officinale, caulis spatholobi, rhizoma polygonati, Aleppo avens, rubia cordifolia, cortex phellodendri, uncaria, hairyvein agrimony, radix pseudostellariae, dogwood, brucea javanica, savatier monochasma herb, trollflower, elephantopus scaber, Szechwan chinaberry fruits, portulaca oleracea, cortex acanthopanacis, spina gleditsiae, rabdosia rubescens, fructus kochiae, prepared rehmannia roots, cortex phellodendri chinensis and liquorice. The traditional Chinese medicine composition is not likely to generate resistance and extremely small in toxic and side effect, and further has the advantages of promoting organism growth, enhancing immunity, improving organism disease resistance and the like; the purpose of preventing and treating coccidiosis can be achieved, and the problems of medicine residues harming the human body and obstructing broiler chicken export can be solved; meanwhile, the organism immunity can be enhanced, growth and development of chickens are promoted, and the productivity of the chickens is improved.