NOVELTY - Cultivating white fungus comprises (i) taking cottonseed hulls, bean cake, shiitake stem, lime and gypsum based on dry matter, drying, and crushing into granules; (ii) adding the shiitake stem with clean water, soaking, uniformly mixing the leaching solution with mushroom slag, adding the cottonseed hull and bake cake, mixing, piling the material, finally covering the material with grass tarpaulin for carrying out natural fermentation, turning once in a day, stopping fermentation, cooling, seeding and growing hypha; and (iii) managing grown fungus, and harvesting white fungus.    USE - The method is useful for cultivating white fungus (claimed).    ADVANTAGE - The method: promotes beneficial microbial growth, improves feed microflora and accelerate the catalytic decomposition of material by mixing, piling and fermenting the shiitake soaked material and plant material; promotes the mycelium fungus growth; provides strong disease-resistant capability; has high biological conversion rate; saves the labor, coal and other resources; reduces environmental pollute, and is suitable for low-carbon environmental protection.    DETAILED DESCRIPTION - Cultivating white fungus comprises (i) taking 70-78% cottonseed hulls, 16-18% bean cake, 4-5% shiitake stem, 3-4% lime, and 1% gypsum based on dry matter, where the shiitake stem is waste material produced by mushrooms, drying, and crushing into 2-3 mm granules; (ii) adding the shiitake stem with 20-30 times of clean water, soaking at room temperature for 18h-24 hours, uniformly mixing the leaching solution with mushroom slag, adding the cottonseed hull and bake cake, mixing, piling the material on trapezoidal heap of 1-1.2 m, width of 2-3 m and specific length, controlling the dry weight of the material to 300-500 kg in each stack, after four weeks, using wooden stick with diameter of 10-15 cm for vertical vent plug heaping, piling straight at the bottom, where stomatal density is 1/m3, finally covering the material with grass tarpaulin for carrying out natural fermentation, when the material temperature reaches 60 degrees C, keeping temperature for 24 hours, turning once in a day, when turning for first time, adding lime, when turning for second time, then adding gypsum, where totally turning for 3-4 times, turning for 5-6 days, stopping fermentation, when the material reaches water content of 63-65%, cooling the fermentation material, directly conveying into a furrow bed for seeding and growing hypha, and then managing grown fungus; and (iii) harvesting white fungus, and fully spraying 0.01-0.02 g/ml shiitake stem leaching solution, where spraying amount is 4-6 kg/m2, where the preparation of the leaching solution comprises adding the shiitake mushroom stem with 20 times of clean water, soaking for 18-24 hours, removing filter residue, then supplementing to the original water quantity to obtain the shiitake stem leaching solution with concentration of 0.05 g/ml, and adding clean water to dilute.