The invention discloses a preparation method for composite dried albumen prepared from poultry egg pulp, bean isolated protein powder or bean milk, water, spice water, light soy sauce and white sugar. According to the preparation method, conventional food processing means and modern food industrial production technology are combined for matching conventional food such as poultry eggs and beans for deep processing, the product has a shelf life up to one year or more and industrial production can be realized. The method helps to successfully solve the problems that the dried albumen is layered, has honeycomb bubbles and the like, and the product is uniform and stable. The prepared composite dried albumen is excellent in color, fragrance and taste, fine in mouthfeel and perfect in elasticity, can well cater to the dietary habit and the consumption demands of modern people, and has wide market prospect. The preparation method provides a favorable approach for solving problems such as storage and deep processing of poultry eggs, deep processing of beans and the like, and helps to promote the development of deep processing industry of poultry and bean products in our country.