A disc conveying device includes a plurality of disc holding members stacked in a first direction which is a disc thickness direction, one of the plurality of disc holding members holding a disc such that the disc can slide to one side in a second direction orthogonal to the first direction, a disc holding member moving mechanism separating the one of the plurality of disc holding members from an adjacent one of the plurality of disc holding members in the first direction, moving the one of the plurality of disc holding members to the one side in the second direction, and partially protruding the disc from other discs held by the plurality of disc holding members to the one side in the second direction, and a disc conveying mechanism holding a protruded part of the disc and conveying the disc to the one side in the second direction.