NOVELTY - Manufacture of buna shimeji mushroom cultivation material includes providing cottonseed hull, wood chips, bean cake, mushroom material, lime, calcium superphosphate and gypsum, taking mushroom material, adding clean water, soaking at room temperature, uniformly mixing with cottonseed hull, wood chips and bean cake, piling into a ladder-shaped stack, controlling culture material dry weight, plugging with a stick to provide a vertical hole on upper stack, covering with grass thatch, naturally fermenting and when material temperature reaches 60 degrees C, keeping the temperature for 24 hours.    USE - Manufacture of buna shimeji mushroom cultivation material (claimed) used for promoting the growth of buna shimeji mushroom.    ADVANTAGE - The method uses mushroom material, which is purely natural nutrient liquid containing rich biologically active substances, promotes beneficial microorganism breeding, improves microorganism flora and accelerates cultivation material catalytic decomposition, provides cultivation material with high activity bacterium and active metabolite, saves labor, coal and other resources, reduces environmental pollution and is suitable for low-carbon environment-friendly implementation.    DETAILED DESCRIPTION - Manufacture of buna shimeji mushroom cultivation material comprises providing 55-65% cottonseed hull, 16-26% wood chips having particle diameter of 3-5 mm, 10-12% bean cake, 3-4% mushroom material, 2-3% lime, 1% calcium superphosphate and 1% gypsum, where total weight is 100 wt.% based on dry material, and the mushroom material is from mushroom production processing wastes, which are dried and crushed into 2-3 mm particles, taking mushroom material, adding 20-30 times by weight of clean water, soaking for 18-24 hours at room temperature, uniformly mixing with cottonseed hull, wood chips and bean cake, piling into a ladder-shaped stack having a height of 1.0-1.2 m and width of 2-3 m, controlling culture material dry weight at 300-500 kg, plugging with a stick having diameter of 10-15 cm to provide a vertical hole on upper stack, where stomatal density is 1/m3, covering with grass thatch, naturally fermenting, when material temperature reaches 60 degrees C, keeping the temperature for 24 hours, turning once each day, where after first turning, adding lime, and after second turning, adding gypsum and calcium superphosphate, where total turning is 3-4 times, fermenting for 5-6 days, controlling cultivation material water content at 63-65%, putting into 17 cmx 35 cmx 0.004 cm polypropylene plastic bag, inoculating buna shimeji mushroom strain, cultivating in dark room at controlled temperature of 18-20 degrees C and humidity of 60-75% for 22-24 days, and conducting conventional fungus growing management.