PURPOSE: A plug socket is provided to separate a plug from a socket stably by releasing force of a hooking member fixing a separation plate only by using an elastic force of an elastic spring. CONSTITUTION: A hooking member(13) includes a hooking protrusion(12) on the top. The hooking member includes an axis rod on both sides. The axis rod is axis-connected to a guide piece(16) formed on the bottom of a body(6). A locking groove(17) is formed in the end of an operating link(14), and attaches a part of the lower part in the axis rod of the hooking member. A spring(11) is intervened between the guide piece and the operating link, and presses the operating link toward the direction capable of rotating a hooking chin to be close to a hooking groove(8).
