A mobile terminal, comprising: a frame (101, 102); a flexible display unit including a fixed portion coupled to the frame by having one side of the flexible display unit facing outward and a variable portion configured to bend in a first direction; and a support frame supporting the variable portion in a manner that one side of the support frame is disposed to face a corresponding side of the variable portion of the flexible display unit, the support frame comprising: a plurality of rigid bars extended in a second direction orthogonal to the first direction and disposed side-by-side with the first direction; a flexible portion coupling the rigid bars; and a lateral protection portion covering lateral sides of the variable portion of the flexible display unit in a second direction orthogonal to the first direction and formed of flexible material. wherein the lateral protection portion comprises: a first protection portion located at an end portion of the one side of the flexible display unit; a second protection portion located at an end portion of an opposite side of the flexible display unit; and a third protection portion covering a lateral side of the flexible display unit, wherein the first protection portion and the second protection portion contact with one side and an opposite side of the flexible display unit, respectively, and the third protection portion does not contact the lateral side of the flexible display unit. a frame (101, 102); a flexible display unit including a fixed portion coupled to the frame by having one side of the flexible display unit facing outward and a variable portion configured to bend in a first direction; and a support frame supporting the variable portion in a manner that one side of the support frame is disposed to face a corresponding side of the variable portion of the flexible display unit, the support frame comprising: a plurality of rigid bars extended in a second direction orthogonal to the first direction and disposed side-by-side with the first direction; a flexible portion coupling the rigid bars; and a lateral protection portion covering lateral sides of the variable portion of the flexible display unit in a second direction orthogonal to the first direction and formed of flexible material. wherein the lateral protection portion comprises: a first protection portion located at an end portion of the one side of the flexible display unit; a second protection portion located at an end portion of an opposite side of the flexible display unit; and a third protection portion covering a lateral side of the flexible display unit, wherein the first protection portion and the second protection portion contact with one side and an opposite side of the flexible display unit, respectively, and the third protection portion does not contact the lateral side of the flexible display unit. a plurality of rigid bars extended in a second direction orthogonal to the first direction and disposed side-by-side with the first direction; a flexible portion coupling the rigid bars; and a lateral protection portion covering lateral sides of the variable portion of the flexible display unit in a second direction orthogonal to the first direction and formed of flexible material. wherein the lateral protection portion comprises: a first protection portion located at an end portion of the one side of the flexible display unit; a second protection portion located at an end portion of an opposite side of the flexible display unit; and a third protection portion covering a lateral side of the flexible display unit, a first protection portion located at an end portion of the one side of the flexible display unit; a second protection portion located at an end portion of an opposite side of the flexible display unit; and a third protection portion covering a lateral side of the flexible display unit, wherein the first protection portion and the second protection portion contact with one side and an opposite side of the flexible display unit, respectively, and the third protection portion does not contact the lateral side of the flexible display unit.