The invention discloses a crop slow-release fertilizer prepared by using edible fungus residue, and relates to the field of crop fertilizers. The crop slow-release fertilizer comprises a slow-releasefertilizer matrix, a slow-release fertilizer coating film and a binder, wherein the slow-release fertilizer matrix comprises the following raw materials in parts by weight: 200-300 parts of bauxite-modified edible fungus residue, 120-180 parts of urea, 70-100 parts of potassium dihydrogen phosphate, 35-55 parts of ammonium chloride, 15-35 parts of ammonium sulfate, 8-16 parts of magnesium aluminosilicate, 40-80 parts of an amino acid compounding agent, 20-45 parts of potassium sulfate, 5-9 parts of ferric chloride, 30-50 parts of soybean meal and 3-7 parts of fulvic acid; and the slow-releasefertilizer coating film comprises the following raw materials in parts by weight: 50-80 parts of polylactic acid, 30-40 parts of starch, 30-50 parts of bamboo fiber compounded polyhydroxybutyrate, 25-30 parts of polypropylene and 6-8 parts of propylene glycol monomethyl ether acetate. The prepared slow-release fertilizer has abundant nutrition and slow release rate, and the slow-release fertilizercoating film can be easily degraded and do not pollute the lands.