Abstract: An organic waste disposal system capable of speeding up drying and fermenting speeds and of continuously treating raw materials, and furthermore capable of operating in a clean working environment and reducing a running cost. The organic waste disposal system has a crusher for changing the organic wastes into flowing material, a preparatory fermentor including an agitating blade wherein the crusher and the preparatory fermentor are connected by a pump, and it further has a fermentor with a heating mechanism and a plurality of agitating blades. A hot air circulation pipe, on which a water heater utilizing accumulated heat and dehumidifier, is provided. The preparatory fermentor and the fermentor are both connected to the pump. A suction portion of a cyclone having a suction function is connected to the fermentor by a suction pipe. Each device of the system set forth above, is connected to a deodorizer.