Disclosed are a power socket and an adapter having the socket. The power socket includes an insulating base and a plurality of conductive pins, and the insulating base includes a base body, an extension protruded from the base body, a slot formed on an end surface of the base body, a plurality of through hole formed on the extension and interconnected to the slots, and a penetrating hole formed on the extension and at a position corresponding to each respective through hole and penetrating the through hole, and each conductive pin is embedded into the through hole, and an end of each conductive pin is exposed from the slot, and the other end of the conductive pin is formed on an inner side of the penetrating hole, so as to simplify the manufacturing procedure and lower the manufacturing cost.