An interspinous omnidirectional dynamic stabilization device, comprising a first fixing part (1), a second fixing part (2), a connecting structure (4) and an elastic structure (3). The first fixing part (1) and the second fixing part (2) are fixedly connected to each other by means of the connecting structure (4) and elastic structure (3). The bottoms of the first fixing part (1) and of the second fixing part (2) are manufactured to have at least one barb (6). The elastic structure (3) consists of at least at least one linked U-shaped structure (301). The first fixing part (1) and second fixing part (2) are manufactured having fixing holes (5). The present stabilization device can provide a certain amount of mobility in any direction, according to the needs of the bodys physiological activity, but without causing stabilizing structures to be relatively displaced, or loosen and fall off. In addition, the present stabilization device is fixed to the spinous processes and lamina, with the elastic structure attached to the spinous processes on either side of an interspinous space, the bottom of the prosthesis is not forced into the dura mater, lowering the risk of surgery injuring the dura mater.
