A hard disk cartridge, comprising an outer box and a hard disk body supported in the outer box through a cushion member, wherein a hard frame is installed on at least right and left side faces of the hard disk body and the cushion member is installed on the outer surfaces of the frames so that the upper and lower ends thereof are extruded from the upper and lower surfaces of the hard disk body to the outside, whereby external impacts applied to the hard disk body in lateral and vertical directions can be absorbed by the cushion member and, since the impact force can be relieved sufficiently even if the cushion member is thin, the size of the hard disk cartridge can be reduced accordingly.
