A disc tray for a printing device is disclosed comprising a mover driving means including a first guiding portion; a main body comprising a disc receiver having a holding portion and a slopping portion connected with each other, a second guiding portion engaged with the first guiding portion, and a third guiding portion, wherein the mover driving means drives the main body by way of the first guiding portion and the second guiding portion to move the main body; and a supporter comprising a fourth guiding portion engaged with the third guiding portion so as to allow the fourth guiding portion moving along the third guiding portion, wherein the supporter and the holding portion are used to support a printed disc; when the disc receiver receives the printed disc, the supporter is moved to be veiled under the main body for dropping the printed disc from the slopping portion of the disc receiver.