Abstract: A driving device for a mini-disc player, which can carry out loading and unloading of a disc, operation of a pick up, and loading and unloading of a magnetic head using only one motor. The driving device includes, a driving part having a motor fixed on a deck and a gear train, a cam having a cam groove formed therein driven by the motor, a disc loading means having one end thereof inserted in the cam groove for varying its position following rotation of the cam, a pick up operation part for operating a pick up by the rotation of the cam continued after completion of the disc loading by the disc loading means, and a magnetic head loading part moved interlocked with the rotation of the cam.