Abstract: The high-power hall electric propulsion system is designed on the background of earth-moon cargo mission.The hall propulsion system has the advantages of low thrust,high specific impulse,simple structure and high reliability.Compared with traditional chemical propulsion,it can save a large amount of propellant,greatly reduce the launch weight and deliver more payloads to the destination.Under the condition of fully investigating the research status of highpower thrusters at home and abroad and the design scheme of high-power electric propulsion system,the scheme design of high-power hall electric propulsion system is presented in view of the mission requirements of orbital transfer from low earth orbit to lunar orbit,which provides the basis for further exploration of deep space.