NOVELTY - Organic fertilizer comprises 50-60 %mass edible fungus residue, 20-25 %mass soy sauce residue or lees, 5-10 %mass phosphate rock, 5-10 %mass waste smoke residue or peat, 1-3 %mass potassium sulfate, 1-3 %mass urea, and 3-5 %mass trace elements. The trace elements are one or more chosen from borax, zinc sulfate, copper sulfate, manganese sulfate, ammonium molybdate, magnesium sulfate, ferrous sulfate or their mixtures.    USE - As organic fertilizer (claimed).    DETAILED DESCRIPTION - Organic fertilizer comprises 50-60 %mass edible fungus residue, 20-25 %mass soy sauce residue or lees, 5-10 %mass phosphate rock, 5-10 %mass peat, 1-3 %mass potassium sulfate, 1-3 %mass urea, and 3-5 %mass trace elements. The trace elements are one or more chosen from borax, zinc sulfate, copper sulfate, manganese sulfate, ammonium molybdate, magnesium sulfate, ferrous sulfate or their mixtures. The fertilizer is prepared by mixing 0.005-0.01 %mass the above-mentioned raw materials, fermenting the mixture, and adjusting water content of the raw materials to 35-45%, stirring uniformly, adding mixture into anaerobic fermentation tank, and obtaining fermented compost, where the fermentation process is carried out using a double helix turner machine for turning and controlling water content and oxygen supply. An INDEPENDENT CLAIM is included for method for preparing the organic fertilizer, which involves (a) crushing edible fungus residue to 80-200 mesh size powder, weighing the crushed powder, and mixing soy sauce residue or lees, phosphate rock, peat, potassium sulfate, urea, and trace elements, (b) adding the mixed raw materials to fermentation groove to a height of 2 m, (c) adding 0.005-0.01 %mass mixed material to fermentation tank, adjusting water content to 35-45%, fermenting anaerobically at 35-45 degrees C for 3-5 days, stirring the compost twice at the same time opening the inflatable oxygen supply device at 35 degrees C with 30-40% water content, and carrying out anaerobic fermentation for the second time for 3-5 days, (d) terminating anaerobic fermentation, turning the compost once or twice daily, steaming, and reducing water content of the material to 30% or less to entirely decomposed mixture, and (e) crushing the materials, sieving the crushed materials, and packing the obtained product.