Abstract This paper designs a temperature control system. AT90S8535 is a kind of excellent performance and has the development potential of microcontrollers. In this paper, the artificial intelligence algorithm and PID adaptive algorithm are used to optimize the system control process. Fuzzy rules are used to adjust PID in the control system. Control parameters can be set automatically. This new algorithm can eliminate the phenomenon of PID saturation integral and improve the response speed while reducing overshoot. The system is stable, reliable, and easy to install. It can effectively realize remote temperature acquisition and control with low cost and low power consumption of terminal nodes. The system achieves the purpose of safe and reliable data transmission.