The invention relates to a formula of tamarind pulp and peanut milk for relieving allergic enteritis and a preparation method thereof. The formula comprises 300 grams of composite stabilizer, which is prepared from 20 kilograms of tamarind pulp, 20 kilograms of string bean, 20 kilograms of ficus formosana, 20 kilograms of fried liquoric root, 20 kilograms of peanut kernel, 6 kilograms of white granulated sugar, 100 grams of sodium phosphate, 100 grams of xanthan gum and 200 grams of sodium alginate, and 200 grams of composite emulsifier, which consist of 150 grams of sucrose ester and 50 grams of monoglyceride. The preparation method comprises: 1) preparing mixed solution of traditional Chinese medicines, namely grinding to obtain powder, boiling, filtering, degassing and sterilizing; 2) preparing peanut milk, namely selecting peanuts, flavoring and peeling, soaking, milling to obtain pulp and filtering; and 3) preparing tamarind pulp and peanut milk for relieving allergic enteritis, namely blending mixed milk, homogenizing, filling and sterilizing. The invention has the advantage that the beverage can relieve deficiency, increase strength, improve complexion and treat weakness and sickness. When taken for a long time, the beverage can improve eyesight, reduce body weight, prolong life, increase essence and marrow, relieve pain in waist and cold in knee, eliminate thirsty and warming middle-jiao, nourish heart and lung and relieve deficiency and weakness in liver and kidney. The invention also has the advantage that when drunk frequently, the yoghourt beverage can reduce intestine function disorder, reduce body weight and prolong life.