The invention discloses a method for producing organic fertilizer by means of tobacco waste in cold regions and relates to an organic fertilizer production method. The method aims to solve the problem that aerobic composting of tobacco waste can not be achieved in low-temperature regions in winter. The method comprises the steps of 1, preparing tobacco waste materials; 2, preparing a compost conditioner; 3, preheating raw materials; 4, culturing an inoculant to obtain a compost fermentation inoculant culture solution; 5, fermenting compost to obtain fermented compost; 6, conducting aftertreatment to obtain the tobacco waste organic fertilizer. The method has the advantages that tobacco waste composting is achieved under the low-temperature condition in cold regions; reheating is not needed, compost is heated and kept in the high-temperature stage completely by means of heat emitted by microorganisms, and the national compost sanity standard is met; operation is easy, and cost is quite low. The method is mainly used for producing organic fertilizer by means of tobacco waste in cold regions.