The present invention relates to a label device for optical discs, which is capable of being installed into an optical disc device to form an image thereon. The label device includes a label layer and an adhesive. The label layer has a bottom surface on which the adhesive is formed. The label layer is configured to form the image via a writing unit. The label layer further includes a substrate and a label film for forming the image thereon. The label device is attached to a base or an optical disc by the adhesive so as to be installed into the optical disc device. The optical disc device is then utilized to form the image on the label film.