The invention discloses a method for preparing chicken powder by using chicken skeleton and chicken skin. The chicken skeleton and the chicken skin are used as raw materials; a Daokou roast chicken formula and a Daokou roast chicken process are adopted; and the chicken powder is prepared by frying, halogenation reaction to produce fragrance, high-pressure low-temperature extraction, separation, concentration, homogenizing and spray drying. The method has low-cost and easily-obtained product raw materials, is convenient for industrialized production, and can be used for scale production; the processes of high-pressure low-temperature extraction, low-temperature vacuum concentration, spry drying and the like adopted during processing the product can well preserve fragrance and flavor of theproduct and avoid the loss of the fragrance and the flavor; and because the fragrance and the flavor of the product are accepted by customers, the product can be added into food of different saline tastes, the variety of the product is increased, and the product is widely applied in households, catering industry and food industry.