To provide a garbage dispoer wherein a period for recovering fermentation decomposition ability to a normal condition is shorter than the conventional one and useless electric power is not consumed when the fermentation decomposition ability of garbage is lowered.

The garbage disposr of the present invention determines a specified temperature corresponding to exhausting temperature based on the exhausting temperature detected by an exhausting temperature sensor 24 and specified temperatures set on every temperature ranges of a plurality of stages and a control part 19 for controlling a heating part 22 in such a way that based on the determined specified temperature, the temperature detected by a heating temperature sensor becomes to the specified temperature is provided. In addition, the control part 19 makes the heating part 22 OFF and does not perform control when the exhausting temperature detected by the exhausting temperature sensor 24 reaches the highest temperature range.