The utility model relates to a self stabilization artificial vertebral body used for implanting to replace a host centrum segment which is cut off or missing. The self stabilization artificial vertebral body comprises a centrum main body and centrum fixing screws, wherein the centrum main body and centrum fusion faces have microcellular structures which are convenient for bone cells to grow therein. During operations, the centrum main body with a proper height is adopted to fill in the portion of the host centrum segment which is removed, and the centrum main body is fixedly connected with upper and lower adjacent healthy host centrums by the centrum fixing screws. The self stabilization artificial vertebral body has good postoperative immediate stability, is also good in bone fusion, effectively prevents subsidence by continuously keeping the height of the replaced centrum and has none notch after being implanted into a body, and operation is easy and reliable.