Abstract: The mobile communication device of this invention comprises a telephone main body; a display means which is positioned on a surface of the telephone main body, and is capable of displaying the operation content of the mobile communication device and a pick-up image of an object; an image pick-up optical system unit which is positioned on a face other than the face on which is positioned the display means of the telephone main body to pick up the image of the object; and a light emission means to illuminate the object which is positioned on a face on which is positioned the image pick-up optical system unit.