Radar antenna of fast, stable erect and roll-up is one of the most basic requirements of the lifting system. In order to improve the mobility of vehicle-borne radar, the research of the lifting system is very important. Through the analysis of the antenna lifting hydraulic system, the mathematical model of system is established. Using cross coupling control strategy, and AMESim and Simulink co-simulation technique to research the system, the synchronization performance of system was analyzed and compared in unbalance loading case. The simulation results show that using cross coupling control method made the system has the advantages of smooth performance, high reliability and high synchronistic precision.