The present invention discloses production equipment of a sucker rod continuously coated with ultrahigh molecular weight polyethylene, and the production equipment is prepared by connecting the components of a hydraulic pushing mechanism unit-1, a hydraulic pushing mechanism unit-2, a fixed limit wheel-1, a front tractor unit, an extrusion coating unit, a spray water tank cooling unit, a hydraulic pushing mechanism unit-3, a fixed limit wheel-2, a rear tractor unit and a piling frame in sequence. The extrusion coating unit includes an extruder, a split-type mold and a hydraulic mechanism, after the ultra high molecular weight polyethylene is plasticized and melted in the special extruder, the small diameter part of a standard sucker rod with large diameter two ends and a small diameter middle part is coated with the ultra high molecular weight polyethylene. Compared with the prior art, the small diameter part of the standard sucker rod with larger diameter difference (the maximum and minimum diameter difference may be up to 28.2mm) can be continuously coated, and the coating thickness can be adjusted.