The utility model discloses a composting device including stirring rods with aeration holes and adopting the pressurizing aeration. The composting device system comprises a composting reactor main body part, a power supply part, an air supply, pre-processing and pressurizing part, and a composting gas absorption and treatment part, wherein the composting reactor main body part consists of a feeding opening, a heat preservation layer, the stirring rods, a stirring shaft, a discharging opening and a composting cabin; the stirring rods extend towards different directions of the composting cabin by taking the axis of the stirring shaft as the center, so that the fact that materials are be uniformly stirred during the composting reaction can be ensured; pressurized air is introduced into various parts of the composting cabin through aeration holes in the stirring rods, so that the blockage of aeration holes is avoided, while the purpose of uniform aeration is achieved. According to the utility model, while the composting processing of organic wastes can be implemented, materials can be uniformly stirred, the aeration is sufficient and uniform, anaerobic cores in a pile body are reduced to the lowest level, and the odorous substances are greatly reduced while the composting reaction process is accelerated.