Nowadays, the large radio telescope projects have received widespread attention within every country . However, more and more demands on the market are the small radio telescopes or scientific series. For large radio telescope antenna, the demand of accuracy for the pointing is high, all kinds of real time correction need to be done in the process of observing, the investment in control module is enable, mostly using closedloop computer control program. Although the control method has obtained the good effect in the large radio telescope, but for the small,the expensive cost and complex control methods are not applicable. So, in this paper, through practical investigation, the button control circuit is used to control the MCU work mode to replace the original large console, and the control system can be applied to small antenna with a lot of debugging.