A mounting apparatus for a storage device comprises a chassis configured for receiving the storage device and a securing member configured for securing the storage device. The chassis defines a positioning pin, for engaging in a positioning slot defined in the storage device, and an elastic piece mounted on the chassis. The elastic piece is elastically deformed when the securing member is engaged with the storage device and capable of rebounding to drive the storage device to move away from the wall when the securing member is disengaged from the storage device.