A disc loading device includes a loading motor, a loading roller that is driven by the loading motor and that loads and unloads a disc, a gear device provided between the loading motor and the loading roller, the gear device including a plurality of gears, and a power train control device which is configured to control power between the plurality of gears, wherein the power train control device operatively disconnects a power transmission train between the plurality of gears when the disc is unloaded.