NOVELTY - Producing edible organic mushroom using white mulberry branch, comprises (i) crushing mulberry branch; (ii) soaking crushed mulberry branch in a clean sanitary soaking tank by covering with a plastic film; (iii) draining water and spreading naturally to obtain mulberry branch debris; (iv) mixing mulberry branch debris with pure quicklime and edible corn flour, mixing and stirring uniformly to obtain culture material; (v) loading the culture material into a pre-prepared strain bag; (vii) inoculating wood-rotting edible fungi; (viii) culturing; and (ix) picking and cleaning.    USE - The method is useful for producing edible organic mushroom using white mulberry branch (claimed).    ADVANTAGE - The method is easy to learn, has convenient operation, is economical, and promotes utilization of silkworm waste resources.    DETAILED DESCRIPTION - Producing edible organic mushroom using white mulberry branch, comprises (i) crushing mulberry branch in a crusher so that 80% of mulberry particle size is 0.4-1 cm, where before crushing, the moisture content of the mulberry branch is controlled at 60-70%; (ii) soaking crushed mulberry branch in a clean sanitary soaking tank for 2-3 days, saturating with water, turning 2 times for each day and covering with a plastic film; (iii) draining water and spreading naturally to obtain mulberry branch debris; (iv) mixing 96-98.8% mulberry branch debris with 0.5-1.5% pure quicklime and 0.5-1.5% edible corn flour, mixing and stirring uniformly, and adjusting pH to 7.5-9 to obtain culture material; (v) loading the culture material into a pre-prepared strain bag, where each bag weighs about not greater than 5 kg; (vi) sterilizing the bag; (vii) cleaning an inoculation chamber, washing and disinfecting with lime water, placing bag on an inoculation table, UV lamp sterilizing for 1-2 hours, turning off UV lamp, taking bag and inoculating wood-rotting edible fungi; (viii) indoor or shed culturing at 1-30 degrees C under weak light, maintaining culture environment humidity at 90-95% so that mycelium covers the bag, and sprinkling bag with water for 1-4 times after fruiting by maintaining humidity at 90-95%; and (ix) picking after 2-3 days of fruiting, and immediately the cleaning mushroom root to avoid subsequent fruiting.