Fixing device for fixing image onto recording sheet by applying heat and pressure thereto while it passes through fixing nip, including: pressure belt movable in revolving motion; fixing roller; and pressure member for pressing inner surface of the belt toward the roller. The fixing nip is formed between the roller and belt while elastically deformable surface of the roller is contacted with the belt by pressure applied by pressure member to the belt. The pressure member includes: elastic member for applying pressures so that greater pressure is applied to center of the roller than to ends, the center and ends being along axis direction of the roller; and hard member that is disposed parallel to the elastic member on downstream side thereof in revolving direction of the belt and applies pressures to the roller so that greater pressure is applied to ends than to center.