A mobile terminal comprising: a terminal body having a front surface and a rear surface and provided with a bar-type terminal body; a touch screen (251, 351, 451) disposed at the front surface and formed to display visual information, the touch screen (251, 351, 451) configured to sense a touch input; a camera module disposed at the rear surface; a battery accommodating portion for accommodating a battery; an input unit (232, 332) overlapped with the touch screen (251, 351, 451) and disposed at the rear surface to sense an input of a control command; a controller configured to process an input applied to the input unit (232, 332), wherein the input unit (232, 332) includes: a first button portion (233, 333) exposed at an outside of the terminal body at the rear surface of the terminal body and configured to receive a push input corresponding to a first function associated with turning on/off of the power or activating the touch screen; and a second button portion (234, 334) surrounding the first button portion (233, 333) and configured to receive a push input corresponding to a second function different from the first function, the second button portion including keys (234a, 234b, 334a, 334b) disposed adjacent the first button portion (233, 333), and wherein the input unit (232, 332) is disposed between the camera module and the battery accommodating portion, wherein each of the camera module, the first button portion (233, 333) and the keys (243a, 234b) of the second (243, 334) button portion are aligned with the central long axis of the terminal body, and wherein the second button portion (234, 334) has a second through hole (234d, 334d) to accommodate the first button portion (233, 333) such that the first button portion (233, 333) is disposed between the keys (234a, 234b, 334a, 334b). a terminal body having a front surface and a rear surface and provided with a bar-type terminal body; a touch screen (251, 351, 451) disposed at the front surface and formed to display visual information, the touch screen (251, 351, 451) configured to sense a touch input; a camera module disposed at the rear surface; a battery accommodating portion for accommodating a battery; an input unit (232, 332) overlapped with the touch screen (251, 351, 451) and disposed at the rear surface to sense an input of a control command; a controller configured to process an input applied to the input unit (232, 332), wherein the input unit (232, 332) includes: a first button portion (233, 333) exposed at an outside of the terminal body at the rear surface of the terminal body and configured to receive a push input corresponding to a first function associated with turning on/off of the power or activating the touch screen; and a second button portion (234, 334) surrounding the first button portion (233, 333) and configured to receive a push input corresponding to a second function different from the first function, the second button portion including keys (234a, 234b, 334a, 334b) disposed adjacent the first button portion (233, 333), and wherein a first button portion (233, 333) exposed at an outside of the terminal body at the rear surface of the terminal body and configured to receive a push input corresponding to a first function associated with turning on/off of the power or activating the touch screen; and a second button portion (234, 334) surrounding the first button portion (233, 333) and configured to receive a push input corresponding to a second function different from the first function, the second button portion including keys (234a, 234b, 334a, 334b) disposed adjacent the first button portion (233, 333), and wherein the input unit (232, 332) is disposed between the camera module and the battery accommodating portion, wherein each of the camera module, the first button portion (233, 333) and the keys (243a, 234b) of the second (243, 334) button portion are aligned with the central long axis of the terminal body, and wherein the second button portion (234, 334) has a second through hole (234d, 334d) to accommodate the first button portion (233, 333) such that the first button portion (233, 333) is disposed between the keys (234a, 234b, 334a, 334b).