The invention discloses a bagged mushroom production method which comprises the steps of strain making, nutrient preparation, bagging, sterilization, inoculation, mycelium culture, coloring, inducement to primordium of mushroom and harvesting. The method is characterized in that 1, in the nutrient preparation step, 78% of miscellaneous tree sawdust, 20% of wheat bran, 1% of sucrose and 1% of gypsum in percentage by weight are evenly mixed, then 55-58% of water is added, and blending is performed; 2, the nutrient is put in barrel bags within 4 hours; 3, the bags are piled in the shape of a well and are sterilized; 4, when the bags are cooled to 25-28 DEG C, inoculation is performed; 5, the mushroom bags are transferred into a mushroom growth room of 20-25 DEG C and subjected to mycelium culture, and puncturing ventilation is performed twice in the mycelium culture period; and 6, in the mushroom growth management period, artificially-aided inducement to primordium of mushroom, dry stimulation and other treatment operations are performed. According to the invention, large-scale bagged mushroom production can be realized, the mushroom survival rate is high, the deformed mushroom defective rate is below 5%, the cost can be reduced and the product quality is high.