A fixing element for hard disk drive includes a frame and a hard disk. The frame includes a bottom plate, a front plate, a rear plate and a side plate. The front plate has a flange extending horizontally and backwardly from the front plate. A first elastic element is formed on a bottom of the flange. A second elastic element is located at the bottom plate in a position directly under the first elastic element. The supporting element defines an engaging groove at rear ends thereof. The engaging groove engages with a position element secured to the frame, the first elastic element is abutting an upper surface of the supporting element, and the second elastic element is abutting a bottom surface of the supporting element.