Abstract: A guide track device of a disk drive is installed at two sides of a disk drive; and then the guide tracks are installed at two slide grooves at a pair of machine frame of a computer casing so as to position the disk drive or pull and push the disk drive. Each guide track device comprises two convex cambered elastomers at two sides. A conductive elastic sheet is a cambered plate and has two hooks. By the two hooks, the conductive elastic sheet are buckled into the two windows. By inserting a plurality of tenons into the holes at lateral sides of a disk drive, the pair of guide tracks are positioned to the disk drive. An ear is at a front end of each guide track. By pulling or pushing the ears, the disk drive can be pull out from or push into the machine frame.