The present disclosure provides a power supply socket and a power receiving head. The socket includes a power supply socket housing, a conductive member, a switching element, and a control component. The conductive member is provided in the power supply socket housing and can be connected to a conductive portion on a power receiving head. The switching element is provided in the housing and has an output end and a control end, the output end of the switching element is connected to the conductive member. The control component is provided in the housing and connected to the control end of the switching element, and is configured to detect the power receiving head, and control the switching element to be turned on when the power receiving head is detected, and control the switching element to be turned off when the power receiving head is not detected.