A socket structure is disclosed, comprising a base seat combined with an external cover, in which the top plane of the external cover has a socket panel, and a high-low tilted positioning plate is installed inside the external cover, with a high edge of the positioning plate being abutted by a movable abutting element, and the bottom end of the abutting element includes an elastic body; also, a release element is placed between the socket panel and the positioning plate, and the abutting element can be driven to move by means of a push button control located on one side of the socket panel.