In order to solve the problem of long leveling time during the operation of certain missile test equipment, an automatic leveling system is designed based on monitor and control generated system (MCGS). Using the control software based on MCGS, the tilt-angle data of the equipment is collected and processed in real time, the control signal is output to the hydraulic system for automatic leveling function, and 3 representative states are selected for simulation test. Simulation results show that the system has advantages of less leveling time, high precision, simple equipment operation, and strong practicability. It can achieve rapid leveling of missile test equipment and improve work efficiency.