A plug-type connector includes a connector main body having a first end formed into a plug portion and an opposite second end formed into a pull portion; a pinch unit movably coupled to the pull portion, and having at least a vertical plate corresponding to an end face of the pull portion and a pinch plate perpendicularly extended from the vertical plate and corresponding to a back face of the pull portion; and an elastic element located between the back face of the pull portion and the pinch plate. Two plug-type connectors can be plugged in a two-leveled housing back to back. The connector main bodies are normally firmly connected to the housing by the pinch units, and any one of the two connector main bodies can be easily removed from the housing simply by pulling the pinch unit thereof without being interfered by the other pinch unit.