A mobile terminal includes: a body having a slot at one side thereof; a socket mounted to the body, and to which an external device is connected through the slot; a slide door coupled to the body so as to expose or cover the socket; and a guide portion formed in the body, and configured to guide motion of the sliding door, wherein the slide door comprises: a base having a plate shape; a manipulation portion protruding from a front surface of the base, and exposed to the outside through the slot; and a rail portion formed to be slidable along the guide portion, and coupled to a rear surface of the base so as to be covered by the base.