Due to the influence of its own parameters, conventional sand⁃washing tools can not meet the needs of the field. Based on the theoretical study of sand⁃washing mechanism, a complete set of sand⁃washing tools is designed. Through calculation, laboratory and field operation, it is proved that the non⁃metallic continuous pipe horizontal well sand⁃washing tool can solve the sand⁃washing problem of small displacement surface equipment in horizontal section, realize the functions of adjustable rotational speed, hydraulic propulsion, turbulent sand⁃carrying and pulsed jet, solve the technical problems of non⁃metallic pipe matching sand⁃washing tool, and obtain certain economic and social benefits.