NOVELTY - Method for preparing culturing material for Pleurotus mushroom, involves mixing e.g. mulberry sawdust and lime, packing, bagging and sealing the obtained culture material in polyethylene plastic bag, performing sterilization, transferring the sterilized bag to cooling chamber, performing inoculation of Pleurotus, processing, placing the bags containing mycelium of Pleurotus in culture chamber, managing mushroom, transferring the Pleurotus mushroom mycelium bag to shed, processing, and collecting and harvesting Pleurotus.    USE - The method is useful for preparing culturing material for Pleurotus mushroom (claimed).    ADVANTAGE - The method prepares culture medium which is rich in nutrients, provides high yield of Pleurotus with good quality, and dense and strong growth, prevents disease of Pleurotus, is cost-effective and simple to perform, and utilizes easily obtained materials and hence suitable for large-scale production.    DETAILED DESCRIPTION - Method for preparing culturing material for Pleurotus mushroom, involves (a) mixing 50-70% mulberry sawdust, 20-30% cottonseed hull, 10-15% bran, 1-2% gypsum and 1-2% lime, where the mulberry sawdust is obtained by processing and sieving mulberry wood, removing impurities, scattering quicklime powder on wood surface, allowing natural fermentation at 60 degrees C for 4-5 days for first time, continuously turning for 3 times, and performing fermentation of whole mulberry branch for 20-23 days, accurately weighing the other components and uniformly stirring the other components with the fermented mulberry sawdust, maintaining the water content of the obtained culture material at 60-65%, gripping the culture material by hand, loosening the culture material, packing and bagging the culture material in polyethylene plastic bag under low pressure, where each bag contains 0.9-1 kg culture material, avoiding man-made damage, and sealing the opening of bag (b) performing sterilization of bag at 100 degrees C for 10-12 hours, transferring the sterilized bag to cooling chamber, reducing the material temperature to 28 degrees C, and performing inoculation of Pleurotus to 40-50 bags in aseptic room, (c) maintaining temperature at 25 degrees C, turning the bag once the mycelium grows to a diameter of 2-4 cm, removing bag with contamination, providing ventilation frequently, allowing fresh air, and placing the bags containing mycelium in culture chamber for 25-30 days to obtain mushroom in fruiting stage, and (d) managing mushroom in mushroom room before 9-11 days, sterilizing the mushroom room with 1000 times with 800-fold increase of dichlorvos and 1000 times panaplate for providing insecticidal and acaricidal activity, ventilating the mushroom shed for 4-6 days, pre-wetting the shed before 1-2 days, transferring the Pleurotus mushroom mycelium bag to shed, raising the temperature of the shed to 14-20 degrees C, immediately opening a window for ventilating and cooling the shed when the temperature of the shed is more than 25 degrees C, immediately performing heat preservation of the shed when the temperature is lower than 12 degrees C, controlling the air humidity in the greenhouse or shed at 85-95%, according to the growth of the mushroom condition, opening the bag after 4-5 days, watering every time, providing aeration, maintaining temperature and humidity, providing proper light stimulation, controlling light intensity at 300-600 lx, collecting Pleurotus, and harvesting Pleurotus for 6-10 days.