In order to improve wear resistance of polished rod in oil well,the friction surface of the polished rod samples was treated by applying the technology of supersonic plasma spraying,supersonic flame spraying and surface texturing,and the friction properties the polished rod samples was tested on the UMT friction and wear tester.The results show that the coatings prepared by supersonic plasma spraying and supersonic flame spraying can make the friction coefficient of the polished rod samples decrease from 0.96 to 0.85 and 091,respectively.The surface texturing can make the friction coefficient of the polished rod samples decrease from 0.96 to 0.77.The surface friction coefficient of polished rod samples can be effectively reduced by surface spraying technology and surface texture technology,while the surface texturing technology is superior to the surface spraying technology in improving the friction performance of the polished rod,and the processing of surface texturing is mor convenient,so it has a good application prospect.