This paper introduces the production method and technology of high-melting thin-walled injection molded polypropylene special material;and analyzes the polymerization system temperature,pressure and MFR adjustment based on the existing Innovene gas-phase process of the production plant.The key process param-eters,such as the opening of extruder throttle valve,cylinder temperature,template temperature and palletiz-ing water temperature,are reasonably optimized,thus providing certain reference value for the industrial devel-opment of high-melting thin-wall injection polypropylene special material in the field of coal to olefin.