Abstract:An new type of artificial vertebral body was designed for the surgical treatment of vertebral replacement.It was mainly composed of a grooving spring is located in the middle of the artificial vertebral body and the platforms are fixed to the upper and lower ends of the spring by forth-and-back hand thread. Through turning the spring, the height of the artificial vertebral body could be adjusted. This artificial vertebral body possesses the movable function of axial compression, the flexion, extension and lateral bending.