A sliding-type portable communication apparatus, which has an pop-up type display device, including a first housing; a second housing adapted to slide on the first housing along the longitudinal direction thereof; and a display device having a first region, which is exposed or concealed according to the position of the second housing, and a second region, which is disposed adjacently to the first region and which remains exposed regardless of the position of the second housing, the display device being adapted to advance or retract in a direction perpendicular to the upper surface of the first housing, while remaining in a plane to the upper surface of the first housing.