A disk player which reproduces information recorded on a disk, includes a housing in the front of which an aperture is formed. A disk tray is installed to move into and out of the housing through the aperture and has an upper surface on which a disk is placed. A deck is installed under the disk tray in the housing. A turntable for rotating the disk and an optical pickup for reading information of the disk are installed on the deck. A mechanism is provided for lifting the deck while keeping the deck level. Thus, the disk can be positively clamped since a deck on which a turntable is installed ascends while keeping level.