The invention belongs to the field of biological material recycling, and particularly relates to a mushroom bran recycling method. In the method, mushroom bran, straw, corncobs, bagasse, rice straw and other forestry and agricultural residues serve as the raw materials, with the aid of a nutrient solution, by means of the characteristics of rapid growth of fungal hyphae and strong twisting capacity of mycelia, the mushroom bran and the forestry and agricultural residues are converted into a mycelium composite, and the composite has the advantages of being light in weight, low in cost and capable of being degraded, so the resourceful utilization of the mushroom bran is realized, and the mushroom bran can be used for the fields of light packaging and transporting, is excellent in compressingand buffering performance, can relieve the environment air pollution and improve economic benefits, is an environment-friendly material with great market economic value and can be applied in the field of transporting and packaging.