According to use and indicator requirements of missile target launch,leveling system of the missile target launch vehicle was designed.The system was composed of PLC,high-precision dual-inclination sensor,pressure sensor,hydraulic cylinder and so on.The control strategy of “chasing the highest point” was used in this system,which could realize fast-leveling.In order to avoid weak leg in the leveling process,pressure was regarded as feedback control condition.A certain slope ground was selected for leveling test.The result shows that the leveling system meets design requirements.