In view of the requirement of photovoltaic tracking control for concentrator,a kind of advanced solar dual-axis tracking control system was designed and optimized.In the system a new type of solar position algorithm ENEA(2007) was used and the maximum error of azimuth and zenith is below 0.002 7 °.In the hardware platform,the series of STM32 chip was adopted as the core control system,and the tracking reliability of the motor control was also optimized.The field testing and measurement show that the operation of control system is stable and reliable,and the overall error remains at a low level.