The present invention discloses a simple anti-diarrhea soup preparation method, and relates to the field of food preparation methods. The preparation method comprises: washing 50 g of ma-yuen jobstears seed and 100 g of lotus seeds; placing the ma-yuen jobstears seed and the lotus seeds into an earthenware cooking pot; adding 700 g of water and 80 g of crystal sugar; boiling until the ma-yuen jobstears seed and the lotus seeds are soft, and taking the ma-yuen jobstears seed and the lotus seeds; and adding 100 g of seasoned orange peel to decoct for 20 min to obtain the finished product. The present invention provides a simple anti-diarrhea soup preparation method with a characteristic of simple preparation.