NOVELTY - Pleurotus mushroom cultivation method comprises taking cotton seed hull, bean cake, mushroom stem, lime, and gypsum; taking mushroom stem granules adding clean water, soaking, uniformly mixing with cotton seed hull and bean cake mixture, stacking, drying, plugging holes, covering with tarpaulin, naturally fermenting, turning once a day, where during first turning lime is added, and gypsum is added on the second turning, ending fermentation, cooling, directly paving bed, seeding fungus, covering in material layer, and carrying out fruiting management.    USE - Method for Pleurotus mushroom cultivation (claimed).    ADVANTAGE - The method has promoting growth effect of mycelium and fruiting body, saves labor and coal and other resources, and reduces environmental pollution.    DETAILED DESCRIPTION - Pleurotus mushroom cultivation method comprises taking 82-86 wt.% cotton seed hull, 8-10 wt.% bean cake, 3-4 wt.% mushroom stem, 2-3 wt.% lime, and 1 wt.% gypsum, where mushroom stem is shitake stem prepared into mushroom stem granules by drying and crushing to 2-3 mm; taking mushroom stem granules adding 20-30 times clean water, soaking for 18-24 hours at low temperature, uniformly mixing with cotton seed hull and bean cake mixture, stacking into 1-1.2 m high and 2-3 m wide ladder-shaped stack, drying to 300-500 kg, plugging 10-15 cm diameter holes, where hole density is 1/m3, covering with tarpaulin, naturally fermenting, keeping for 24 hours when temperature reaches 60 degrees C, turning once a day for 3-4 times for 5-6 days, where during first turning lime is added, and gypsum is added on the second turning, ending fermentation, where water content of cultivation material is 63-65%, cooling, directly paving bed, seeding fungus, covering in material layer at 1-2 cm thick, carrying out fruiting management by spraying 0.01-0.015 g/ml mushroom stem leachate during second mushroom wave, and after third mushroom wave at 4-6 kg/m2. The mushroom stem leachate is prepared by adding mushroom stem with 20 times clean water, soaking for 18-24 hours at low temperature, removing filter residue, adding water to a concentration of 0.05 g/ml, and diluting with water.