The invention discloses a method for preparing a cultivation bag material for abalone mushroom only. The method comprises the following steps: 1) preparing cultivation raw materials according to partsby weight; 2) mixing and preparing a cultivation material; 3) fermenting the cultivation material; 4) putting the cultivation material into bags; 5) performing sterilization operation, and cooling tothe room temperature, thereby obtaining the cultivation bag material. By adopting the method disclosed by the invention, the cultivation bag material which is completely nuisanceless can be prepared,and is capable of providing specific nutrients to cultivated abalone mushroom, and then the cultivated abalone mushroom can be relatively excellent in quality; the preparation process is simple, thepreparation cost is low, trace elements essential for the abalone mushroom are also added specifically in the preparation process, and the cultivated abalone mushroom can grow vigorously and is thickand strong in mushroom bodies, large and thick in mushroom crown, high in yield and good in commercial property; the method is sufficient in raw material source, simple and easy in technique, low in cost, high in yield, full in conidial powder, free of cereal, rapid in effect taking and appropriate to wide popularization and application.