The invention discloses a traditional Chinese medicine composition for treating acute enteritis and a preparation method thereof. The traditional Chinese medicine composition mainly comprises the following raw medicines: medicated leaven, malt, Alisma orientale, Poria, Rhizoma atractylodiss, Magnolia officinalis, Atractylodes macrocephaia, Chinese yam, coix seed, Amomum villosum, honeysuckle, dandelion, Chinese violet, plantain seed, gordon euryale seed, Limonitum, blighted wheat, Amomum cardamomum, cinnamon, nutgall, angelica, Ligustrum lucidum, cherokee rose and the like. The traditional Chinese medicine composition can be prepared into any one commonly used oral preparation according to the conventional method of traditional Chinese medicine preparations. The invention can obviously improve the symptoms of excessive diarrhea, loose stool, watery stool, abdominal pain, nausea, vomiting, dyspepsia, fever, body pain, limb weakness and the like, and has obvious clinical curative effect, significant curative effect and rapid effect. Since the traditional Chinese medicine composition adopts medicinal and edible medicines stipulated in the Chinese Pharmacopoeia to compound, the composition has the advantages of low cost, basically no toxicity and side effects and the like.