As an important underwater weapon,sea mine has played an important role in all previous naval battles. MCM is used to clear mines and protect the navigation freedom of ship formation. With the war concept of “zero casualty” gaining more and more popular support,unmanned minefield has become the development direction of MCM. In this paper,the characteristics of unmanned platforms such as unmanned surface vehicle(USV), unmanned underwater vehicle(UUV)and unmanned aerial vehicle(UAV)are comprehensively compared,and the advantages of USV are analyzed. The development and application of foreign MCM USVs are discussed,which provides reference for the development of MCM USV in China.