NOVELTY - Method for cultivating Pleurotus mushroom, involves (a) taking e.g. sugarcane bagasse, gypsum and sawdust, and drying and pulverizing the raw materials, (b) adding water to the mushroom residues, uniformly adding e.g. sugarcane bagasse, piling the mixture to a height of 1-1.2 m and width of 2-3 m in trapezoidal heaps, where each heap has dry weight of 300-500 kg, inserting the stick, fermenting culture and obtaining mycelium, and (c) managing fruiting, harvesting mushroom, analyzing mycelial growth and spraying 0.01-0.02 g/ml mushroom residue particles.    USE - The method is useful for cultivating Pleurotus mushroom (claimed).    ADVANTAGE - The method improves growth of fruiting bodies, and is less labor intensive, cost-effective and environmentally-friendly.    DETAILED DESCRIPTION - Method for cultivating Pleurotus mushroom, involves (a) taking 47-53% sugarcane bagasse, 24-30% sawdust, 15-17% soybean meal, 3-4% mushrooms residue, 2-3% lime, and 1% gypsum, crushing the above-mentioned raw materials to mesh size of 3-5 mm and drying and pulverizing the raw materials to mesh size of 2-3 mm, (b) adding 20-30 times water to the mushroom residues, soaking the mushroom residues in water at room temperature for 18-24 hours, uniformly adding the sugarcane bagasse, sawdust, soybean meal and gypsum, piling the mixture to a height of 1-1.2 m and width of 2-3 m in trapezoidal heaps, where each heap has dry weight of 300-500 kg, inserting the stick having diameter of 10-15 cm in the heap, fermenting the culture at 60 degrees C for 24 hours and 5-6 days, turning the culture for once in a day, adding gypsum to the culture during second turning, where the turning is performed for 3-4 times, maintaining water content of the mixture to 63-65%, cooling the culture and obtaining mycelium on the piled mixture to a thickness of 1-2 cm and (c) managing fruiting, harvesting mushroom, analyzing mycelial growth, and spraying 0.01-0.02 g/ml mushroom residue particles, where mushroom residue particles are prepared by adding 20 times water to the obtained mushroom residue, soaking the mushroom residue in water at room temperature for 18-24 hours, concentrating the mixture to obtain 0.05 g/ml mushroom residue particles, and diluting the concentrated mushroom residue particles.