Abstract: A portable electronic apparatus, which has a simple structure and the performance of visual appearance thereof in an operation state with a display section being adjusted in the height and angle thereof is not decreased, and provides the same comfort as an ordinary TV set while viewing TV images or the like. A main unit (100), a lid section (200) containing a display unit (210) so as to cover the main unit, and a telescopic arm section (300) of which one end is rotatably pivoted in the rear end portion of the main unit, and the other end thereof is rotatably pivoted in the rear portion of the lid section (200) are provided. The main unit (100) of the portable electronic apparatus is provided with locking part (120) for locking the lower edge portion of the lid section (200) in the upper portion on the front-end side thereof.