The invention belongs to the technical field of medicine, relates to a traditional Chinese medicine composition, and in particular relates to a traditional Chinese medicine composition for treating chronic alcoholic toxic liver disease and a preparation method thereof. Aiming at the current technical defects of lack of comprehensive and effective treatment on the chronic alcoholic toxic liver disease, easiness in relapse of chemical treatment, and inconstant curative effect, the invention provides the traditional Chinese medicine composition for treating chronic alcoholic toxic liver disease. The traditional Chinese medicine composition comprises the following components: 10 parts of rhizoma alismatis, 15 parts of Fourstamen Stephania root, 6 parts of herba artemisiae, 10 parts of fleece-flower root, 10 parts of rhizoma ligustici wallichii, 6 parts of angelica, 20 parts of hovenia dulcis, 20 parts of Chinese gall, 10 parts of radix bupleuri, 12 parts of rhizoma polygonati, 15 parts of Scutellaria baicalensis, 30 parts of Lycium barbarum L., 6 parts of Poria cocos, and 10 parts of liquorice. The traditional Chinese medicine composition has a very good treatment effect in the treatment of chronic alcoholic toxic liver disease, and has significant clinical promotion value.