Method  Firstly based on the astronomical algorithms for calculating the position of the sun. Secondly, this article studied the main control technology of solar field control system, including system architecture, hardware and software design, feedback measurement program based on image processing. At last, it made an overall design and planning for the whole plant control system, and proposed a signal interface between solar field control system and DCS.

  Result  This article invented a high-precision and easy engineering implementation algorithm for heliostats tracking and controlling, which will reduce engineering cost and shorten the construction period.

  Conclusion  The research is structural integrity and easy to be realized, it improves accuracy of heliostats tracking and controlling with a lower cost.