Abstract: The present invention is related to a disk guiding device disposed on a disk process device, the disk guiding device comprises a base, a transmitting portion and a slayer. The base is disposed on a main body of the disk process device; the transmitting portion comprises a gear and a positioning module, wherein the gear is pivotally connected to the base and has a long gear and a plurality of short gears, the positioning module is disposed on the base for sustaining and taking the crown of the long gear for confining the rotation angle of the gear. The slayer is disposed and capable of sliding on a plane portion of the base, wherein a plurality of holes are disposed on the salver in sequence from an end-side of the salver toward the perpendicular direction of the end-side, and used for correspondingly engaging with the gear.