The invention discloses a lotus leaf preparation for treating acute enteritis. The lotus leaf preparation comprises the following raw materials: lotus leaf, Poria cocos, Chinese yam, semen plantaginis, Licorice Roots Northwest Origin, the root of Chinese pulsatilla, hawthorn, smoked plum, bighead atractylodes rhizome, rhizoma atractylodis, honeysuckle, scaphium scaphigerum, semen coicis, the seed of Chinese dodder and cinnamon. The preparation method comprises the following steps: washing and drying fresh lotus leaf, Poria cocos, Chinese yam, semen plantaginis, Licorice Roots Northwest Origin, the root of Chinese pulsatilla, honeysuckle, scaphium scaphigerum, semen coicis and the seed of Chinese dodder, weighing the dried lotus leaf, Poria cocos, Chinese yam, semen plantaginis, Licorice Roots Northwest Origin, the root of Chinese pulsatilla, honeysuckle, scaphium scaphigerum, semen coicis and the seed of Chinese dodder as well as the bighead atractylodes rhizome, rhizoma atractylodis and cinnamon according to weight parts, adding water in an amount of 12-15 times that of the total weight of the raw materials, heating by using high heat, adding the hawthorn and smoked plum, heating by using slow fire, cooling to room temperature, and filtering, thereby obtaining the lotus leaf preparation. By utilizing the effects of inducing diuresis and checking diarrhea of the lotus leaves, the lotus leaf preparation used for treating the acute enteritis is prepared, is slightly sweet in taste and good in treatment effect and has the effects of clearing heat, tonifying Qi and detoxifying.