A disk drive bracket (1) includes a connecting bracket (10), a first bracket (20), and a second bracket (30). A first supporting member (14) and a second supporting member (16) sequentially extend from one side of the connecting bracket. A third supporting member (18) extends from an opposite side of the connecting bracket. Each supporting member includes a supporting board (144, 164, 184), and a locating board (142, 162, 182) having locating pins (150, 160, 183). The first and second brackets each have a side panel (24, 34) and a bottom panel (26, 36). Each bottom panel includes two parallel guiding flanges (264, 364). Locating pins (242, 244, 362) extend from the side panel of the first bracket, and from the bottom panel of the second bracket. The guiding flanges of the first and second brackets slidingly engage with the supporting boards of the second and third supporting members respectively.