Disclosed herein is a rotating slide-type mobile communication terminal. The rotating slide-type mobile communication terminal of the present invention includes a main body which includes a pair of guide rails having different curvatures and lengths formed at both sides in a central portion of the main body. The rotating slide-type mobile communication terminal further includes a slider which has on a front surface thereof a liquid crystal display to output various video signals, and a pair of coupling bosses on a rear surface thereof, so that, while the coupling bosses execute a sliding motion, the orientation of the slider is changed in a lateral direction of the main body. The rotating slide-type mobile communication terminal further includes a coupling means, which couples the bosses of the slider to the guide rails of the main body. Therefore, when the slider is opened, the orientation of the liquid crystal display of the slider is changed in a widescreen direction, thus allowing a user to effectively use various multimedia services, such as a TV, moving images and games.