A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air, wherein the wind for cooling a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan. The cooling fan comprises a cooling wind path which is covered by rigid parts, and an air exhaust port of the cooling wind path is arranged near the air intake port of the ventilation fan.