The invention discloses a method for producing a five-cereal coarse cereal recombinant food. The method comprises the following steps of: cleaning raw materials, drying, crushing and sieving with an 80-mesh sieve; and weighing the raw materials in a specific ratio, mixing uniformly, tempering, extruding by using a single-screw extrusion machine, cutting, and drying to obtain the five-cereal coarse cereal recombinant food. According to the method, five-cereal coarse cereals are developed deeply, so that sensory indexes of smells, colors, tastes and the like of products are similar to those of rice, so that the aims of 'refining of coarse grain' and 'the matching of staple grain and the coarse grain' are fulfilled, and the value of agricultural products of the five-cereal coarse cereals and the like is improved.