A mobile terminal comprising: a first frame; a second frame configured to move with respect to the first frame in a first direction to extend the mobile terminal or a second direction opposite to the first direction to contract the mobile terminal; a drive unit configured to switch the mobile terminal to an extended state or a contracted state by moving the second frame with respect to the first frame in the first direction or the second direction; a flexible display unit comprising a fixed part coupled to a front side of the first frame and a variable part extended in the first direction from the fixed part, wherein an end portion of the variable part is curved toward a direction of a rear side of the mobile terminal and is configured to slide with respect to a rear side of the second frame; a main board installed in the first frame; a battery installed in the second frame such that the battery moves together with the second frame; a support link located between the first frame and the second frame; and a signal connecting part connecting the battery and the main board and coupled to the support link, wherein the support link comprises: a first link coupled to the first frame; a second link coupled to the second frame; and a hinge portion whose angle increases in response to movement of the second frame in the first direction; wherein the signal connecting part comprises a first signal connecting part connected to the main board and coupled to the first link, a second signal connecting part connected to the battery and coupled to the second link, wherein the first and the second signal connecting part are arranged in the first direction, and a curved portion between the first signal connecting part and the second signal connecting part and positioned at the hinge portion, and wherein the curved portion having an angle varying in response to the angle of the hinge portion increasing or decreasing. a first frame; a second frame configured to move with respect to the first frame in a first direction to extend the mobile terminal or a second direction opposite to the first direction to contract the mobile terminal; a drive unit configured to switch the mobile terminal to an extended state or a contracted state by moving the second frame with respect to the first frame in the first direction or the second direction; a flexible display unit comprising a fixed part coupled to a front side of the first frame and a variable part extended in the first direction from the fixed part, wherein an end portion of the variable part is curved toward a direction of a rear side of the mobile terminal and is configured to slide with respect to a rear side of the second frame; a main board installed in the first frame; a battery installed in the second frame such that the battery moves together with the second frame; a support link located between the first frame and the second frame; and a signal connecting part connecting the battery and the main board and coupled to the support link, wherein the support link comprises: a first link coupled to the first frame; a second link coupled to the second frame; and a hinge portion whose angle increases in response to movement of the second frame in the first direction; wherein the signal connecting part comprises a first signal connecting part connected to the main board and coupled to the first link, a second signal connecting part connected to the battery and coupled to the second link, wherein the first and the second signal connecting part are arranged in the first direction, and a curved portion between the first signal connecting part and the second signal connecting part and positioned at the hinge portion, and wherein the curved portion having an angle varying in response to the angle of the hinge portion increasing or decreasing. a first link coupled to the first frame; a second link coupled to the second frame; and a hinge portion whose angle increases in response to movement of the second frame in the first direction; wherein the signal connecting part comprises a first signal connecting part connected to the main board and coupled to the first link, a second signal connecting part connected to the battery and coupled to the second link, wherein the first and the second signal connecting part are arranged in the first direction, and a curved portion between the first signal connecting part and the second signal connecting part and positioned at the hinge portion, and wherein the curved portion having an angle varying in response to the angle of the hinge portion increasing or decreasing. a first signal connecting part connected to the main board and coupled to the first link, a second signal connecting part connected to the battery and coupled to the second link, wherein the first and the second signal connecting part are arranged in the first direction, and a curved portion between the first signal connecting part and the second signal connecting part and positioned at the hinge portion, and wherein the curved portion having an angle varying in response to the angle of the hinge portion increasing or decreasing.