Abstract: Yichang City, Hubei Province is located in the subtropical monsoon climate zone of the middle and upper reaches of the Yangtze River, and the spatial and temporal distribution of precipitation is influenced by both terrain and monsoon circulation. Based on the precipitation data of Yichang City from 1960 to 2024, combined with linear regression, Mann Kendall(M-K) test, and wavelet analysis method, the spatiotemporal distribution characteristics and variation trends of precipitation are systematically studied. The research results indicate that the annual precipitation does not show a significant downward trend at a rate of -0.230 7 mm/a, with precipitation during the flood season (May 1st to October 1st) and autumn decreasing at rates of-0.646 5 mm/a and -0.869 mm/a, respectively, while precipitation in spring, summer, and winter shows a weak upward trend.The M-K mutation test showed a significant increase in spring precipitation from 1963 to 1964, and a significant decrease in autumn precipitation from 2004 to 2011; In terms of spatial distribution, precipitation in the northeastern and southwestern mountainous areas shows an upward trend, while precipitation in the eastern, southern, and northwestern regions shows a decreasing trend. Wavelet analysis reveals the main cycle characteristics of precipitation in different seasons, with annual precipitation, flood season, spring, and summer precipitation main cycles of 9 a, 8 a, 7 a, and 9 a, respectively. Autumn and winter are the first main cycles of 24 a and 49 a, respectively. The research results provide a scientific basis for analyzing the evolution of regional precipitation and the response to climate change.