Dock station, electronic apparatus and multi-part apparatus

A dock station, an electronic apparatus and a multi-part apparatus are provided. The dock station includes a dock connection interface, a power supplier and a controller. The dock connection interface includes a first integrated-function pin and a second integrated-function pin. The power supplier is coupled to the first integrated-function pin and the second integrated-function pin, so as to receive a first voltage supplied by the electronic apparatus via the first integrated-function pin or the second integrated-function pin and to output a supplying signal in response to receiving the first voltage. The controller is coupled to the power supplier and the second integrated-function pin, and the controller determine whether the electronic apparatus is a straight-in state or a opposite-in state according to the voltage level of the second integrated-function pin in response to receiving the supplying signal.