The invention relates to a processing method of composite edible mushroom soup blend granules easy to absorb and utilize. The processing method comprises the following steps of: mixing flammulina velutipes serving as raw materials with one or combination of two or more of hericium erinaceus raw materials, lentinus edodes raw materials and grifola frondosa raw materials so as to obtain a mixture; and drying the mixture for three stages, crushing the dried mixture, and granulating the crushed mixture so as to obtain the composite edible mushroom soup blend granules. According to the processing method disclosed by the invention, a three-stage dehydrating and drying technology is adopted, the initial temperature is low, the prepared products are rich in fragrance of mushrooms, do not generate brown stains, do not stick disks, do not adhere, and are free from lumps, the powder fluidity is good, and the polysaccharide dissolution rate of edible mushrooms is high.