Abstract: A hard disk storage device for industrial computers, comprising a casing, a fixed storage rack, a movable storage rack, a fixed rack, a frame lid, an elastic plate and a support rack; the elastic plate is utilized such that the movable storage rack is lifted as the hard disk storage device is opened, and the support rack is utilized for confining the lifting height of the movable storage rack, such that the content capacity of the storage device is increased by effective use of limited spaces.