A packaging tray for a hard disk drive has a plurality of positioning holes. The packaging tray includes a box body, and the box body has a plurality of frame walls and an accommodating space surrounded by the frame walls. The box body has formed a plurality of positioning posts at a bottom of the accommodating space, and the positioning posts are disposed corresponding to the positioning holes of the hard disk drive. Therefore, the hard disk drive placed in the accommodating space will not contact dust in the box body, and the hard disk drive in the box body can avoid scratching.