Operation Control System (OCS) of 600 km/h high-speed magnetic levitated transport system (hereinafter referred to as maglev) is designed by the team of CRRC without any international standards for high-speed maglev. Based on principle of IEEE1474 CBTC (Communication Based Train Control) standard and Shanghai Maglev Commercial Line, a new operation control system of 600km/h high-speed maglev named 600-OCS has been successfully designed. After the prototype is completed, the simulation is carried out in the laboratory. The simulation results show that 600-OCS has advantages of simplified system structure, safer fraction power cut-off and integration of OCS and traction system compared with OCS of Shanghai Maglev Commercial Line.