Sleeve-type sucker rod centralizer is a mechanical device of underground oil device. It is composed by core rod, sleeve and the connector three parts. The outside of sleeve is sprayed and  composite a layer of Ni-base alloy powder to form a combination of solid lubricating film. In the friction process, the substrate surface of the solid lubricant will be transferred to the dual surface, and then form the transfer film, so that friction occurred in the transfer film and friction film to reduce the friction, so that reciprocating motion of the resistance rod significantly lower. For inclined shaft, horizontal wells such as oil wells, pipelines and to prevent wear between the sucker.With three friction surfaces, has changed the traditional centralizer of contact for the contact line. Contact more fully and more obvious anti-migraine effect.