The invention discloses a method for cultivating pleurotus nebrodensis by using kitchen wastes, belonging to the field of re-utilization of waste resources. The method comprises the steps of taking kitchen wastes, miscellaneous wood chips, cottonseed hull, lime powder and gypsum as main raw materials, and preparing the kitchen wastes into a pleurotus nebrodensis mushroom-stick for cultivating pleurotus nebrodensis through several main steps of purification, crushing, material blending, sterilization, inoculation, spawn running, cultivation management, fruiting and the like. The formula and the weight ratio of the culture materials are as follows: 70-80 parts of the kitchen wastes, 5-20 parts of the miscellaneous wood chips, 0-20 parts of the cottonseed hull, 1-5 parts of the lime powder and 1-3 parts of the gypsum.. By adopting the kitchen wastes as the main material, the invention cannot only produce pleurotus nebrodensis with higher nutritive value, but also can treat the kitchen wastes in large scales, as well as effectively protect forest vegetations and save cultivation costs, so that the trend of the national waste resource harmless development is met. The invention has the advantages of low processing and cultivating costs of the mushroom-stick, fast spawn running, high fruiting rate, good security and strong practicability.