A continuous deodorizing apparatus for fat and oil comprising a deodorizing tower, a steam ejector for keeping the pressure inside the deodorizing tower at a vacuum and a steam superheater, the deodorizing tower housing a heating tray disposed uppermost, a charge control tray beneath the heating tray, a heat exchange tray at the bottom, a discharge control tray just above the heat exchange tray, and at least one deodorizing tray disposed between the charge control tray and the discharge control tray. The superheated steam generated by the steam superheater is used as the heat transfer medium for heating the feedstock fat and oil in the heating tray and, then utilized as the operating steam of the steam ejector.