The invention discloses traditional Chinese medicine granules for preventing and treating alcoholic liver and a preparation method of the traditional Chinese medicine granules, and belongs to the field of traditional Chinese medicine. The traditional Chinese medicine granules comprise effective components composed of the following raw materials: mallotus root, radix rehmanniae, phoenix hawksbeard root, trifoliate orange, radix fici simplicissimae, radix bupleuri, rust-brown crotalaria, liquorice, king pedicularis root, polygonum cuspidatum, ficus tikoua, fructus citrus sarcodactylis, rabdosia stracheyi, radix paeoniae alba, semen cuscutae, citrus maxima peel, capparis spinosa, artemisia lactiflora, caulis bambusae in taeniam, glossy privet fruit, pulp of cornus, eleutherococcus senticosus, fructus forsythia and loofah sponge. The traditional Chinese medicine granules are prepared by selecting herbs meeting the monarch, minister, assistant and guide principle, act appropriately to the situation according to the disease causes, have the efficacies of nourishing kidney and liver, soothing liver and harmonizing stomach, nourishing blood to sooth liver, promoting blood circulation to remove blood stasis, alleviating mental depression to regulate qi, invigorating spleen to remove dampness, clearing heat to dissipate phlegm, promoting blood circulation to remove meridian obstruction, and promoting digestion to eliminate stagnation, are good in absorption effect, obvious in curative effect and free of toxic or side effect and clinical adverse reaction, and are relatively high in alcoholic liver cure rate through clinical verifications.