The invention discloses sour-spicy dried ballonflower and a preparation method thereof. The raw materials of the sour-spicy dried ballonflower comprise the following substances: the dried ballonflower, fresh red pepper, vegetable oil, traditional Chinese medicine extract, lemon juice, lean meat, sweet flour paste, white sugar, peanut, sesame, garlic, ginger, salt and monosodium glutamate, wherein the raw materials of the traditional Chinese medicine extract comprise liquorice, scaphium scaphigerum, honeysuckle, Momordica grosvenori, bamboo leaves, radix polygonati officinalis, hawthorn, poria cocos, pericarpium citri reticulatae, lotus seed and lycium. The sour-spicy dried ballonflower is prepared by the steps of preparing sour-spicy paste, protecting the color of the dried ballonflower, dewatering the dried ballonflower, mixing and stirring the sour-spicy paste and the dried ballonflower. The sour-spicy dried ballonflower obtained by the preparation method has the good color, flavor and taste, and the traditional Chinese medicine ingredients with the functions of nourishing the stomach to improve the production of body fluid and clearing heat are added, so the spicy stimulation after eating can be relieved, and the stomach is nourished and the spleen is strengthened. In addition, the provided sour-spicy dried ballonflower can be directly eaten after opening, easy to carry, and convenient to store. The seasonal and regional limitation of a dried ballonflower product is changed.