Abstract: Based on the monthly precipitation data of Zedang meteorological station from 1981 to 2020, this paper analyzes the precipitation characteristics of Zedang area by using the single variable linear regression method and three-year moving average method. The results show that from 1981 to 2020, the precipitation in Zedang area shows an increasing trend, and the climate change tendency rate of precipitation is 18.204 mm/10 a, with a significant increasing trend, except in autumn, the precipitation in the other three seasons showed an increasing trend, which was consistent with that in the same year, especially in spring and summer, the annual precipitation in Zedang area has a significant seasonal variation.