A mobile communication terminal with a radiant-heat function is provided. The mobile communication terminal includes: a display module; a rear cover; an inner support structure positioned between the display module and the rear cover and including a first surface facing the display module and a second surface facing an opposite side to the display module; a first radiant-heat sheet positioned between the first surface of the support structure and the display module; a printed circuit board positioned between the first radiant-heat sheet and the first surface of the support structure; and a second radiant-heat sheet positioned between the second surface of the support structure and the rear cover.