A docking unit for a portable electronic device with which it is possible to establish electrical connection of a portable electronic device surely and easily. A docking unit for electrically connecting a portable electronic device to external devices by having the portable electronic device set engage/disengageably thereon using a connector has a base part for supporting the portable electronic device, positioning means for positioning the portable electronic device in a predetermined position on the base part as the portable electronic device is moved over the base part, and operating means, having and engaging part for engaging with the portable electronic device means, for holding the positioned portable electronic device using the engaging part.1