In order to achieve the accurate guidance of conventional weapon, based on the development status of medium and small guided missile ammunition servo system, the servo system is discussed. Explained the main components of the guided missile servo system, introduced the factors that affect the servo in the guided missile manufacturing. Combine with the development status of the servo at home and abroad, enumerated the typical servos and related parameters, and obtained the application features and development trends of aerodynamic and electric servos. The application results showed that the research on the missile-borne servo in the field of guided missile can improve the accuracy of the guided missiles.