NOVELTY - Cultivating mushroom comprises e.g. taking sawdust, soybean cake, mushroom stalk, lime, and gypsum, drying mushroom production waste and smashing into particle, adding clean water in mushroom stalk particle, soaking, mixing leaching solution with dried mushroom stem residue and sawdust uniformly, adding bean cake mixture, stacking material, controlling dry weight, finally covering tarpaulin to make up the natural fermentation, turning once a day, adding lime during first time turning, adding gypsum during second time turning.    USE - The method is useful for cultivating mushroom (claimed).    ADVANTAGE - The method promotes beneficial microorganism breeding, improves the microorganism flora in material, accelerates cultivation material after fermentation with high active bacterium and active metabolite product, promotes mushroom growth, can obviously increase yield, overcomes the long-term use of pesticide, bactericide and chemical synthesis series fertilizer, avoids reducing of mushroom quality, improves the quality of mushroom, saves labor, reduces the environmental pollution, thus it is environmentally friendly.    DETAILED DESCRIPTION - Cultivating mushroom comprises mixing materials, fermenting, paving bed, seeding, spawning, coloring and fruiting management, specifically comprising (i) mixing material: taking 70-74% sawdust, 18-22% soybean cake, 4-5% mushroom stalk, 2.5% lime, and 1% gypsum, the sawdust is particle diameter of broadleaf hardwood sawdust; drying mushroom production waste and smashing into particle, (ii) adding 20-30 times the weight ratio of clean water in mushroom stalk particle, soaking for 18-24 hours at room temperature, mixing leaching solution with dried mushroom stem residue and sawdust uniformly, adding soybean cake mixture, piling material to height of 1-1.2 m, and width of 2-3 m, trapezoidal stacking to any length, controlling the dry weight of each stack of culture material at 300-500 kg, after stacking, tapping for four weeks, inserting number of vertical holes by wooden stick with diameter of 10-15 cm in the stack, at stack bottom, the air density is 1/m3, finally covering tarpaulin to make up the natural fermentation, after material temperature reaches 60 degrees C, maintaining for 24 hours, then turning once a day, adding lime during first time turning, adding gypsum during second time turning, turning 3-4 times, lasting for 5-6 days, ending fermentation, maintaining moisture at 63-65%, heat dissipating fermented material, directly paving in furrow bed for seeding, when mycelium grow, entering color changing and fruiting management process, and (iii) fruiting management process: harvesting mushroom, full spraying 0.01-0.02 g/ml mushroom leaching solution, spraying 5-7 kg per square meter, where the preparation of leaching solution comprises adding 20 times of clean water in mushroom particles, soaking for 18-24 hours under normal temperature, removing filter slag, supplementing water, obtaining leaching solution with concentration of 0.05 g/ml, and adding clean water to dilute.