A microwave heating appliance, capable of achieving a locally concentrated heating in answer to the purpose while achieving a uniform heating in the overall heating chamber in a normal mode, is provided. The microwave heating appliance includes a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a heating chamber for housing a heated subject heated by the microwave, a rotating antenna for radiating the microwave to the heating chamber, a driving unit for rotating and driving the rotating antenna, a temperature distribution detecting unit for detecting a temperature distribution in the heating chamber, and a controlling unit for controlling a direction of the rotating antenna based on a detected result of the temperature distribution detecting unit so that a sharp part of radiation directivity of the rotating antenna in a direction decided based on the detected result.