Abstract: Stability and maintenance is important for new automatic weather station. This paper proposed the design ideas and programs for improving peripheral devices from the data circuit and power supply. The main methods were adding spare data circuits to resolve circuits and software restrictions, and improving the UPS and generator circuits to make the power protection better. The results showed that: the new design realized data circuit and UPS power backup, and an unattended generator; the design was simple and cost-effective, safe for operation and could produce good effects. It also provided a scientific basis for the construction of meteorological modernization.