A power socket includes a terminal support base, at least one set of conductive terminals, at least one slider, an elastic component, a circuit board component, a photoelectric sensor, and a controller, wherein the photoelectric sensor is configured to detect the extending plate passing through the through hole to generate a trigger signal, and the controller is electrically connected to the photoelectric sensor and at least one set of conductive terminals, and the controller is configured to control the corresponding conductive terminal to be conducted according to the trigger signal.