A disc braking device is utilized in an optical disc drive. The disc braking device is installed on a disc tray of an optical disc drive. Without being affected by an covering component or the location of the disc braking device, the disc braking device makes a disc stop rotating in a more direct and efficient way. The disc braking device contains a structure portion; a braking rod installed and not fixed on the structure portion; and a braking component installed on the braking rod and utilized for making the disc stop rotating.