Using the day-to-day precipitation data of an observation station in Gaoyao(59278) in 1971-2018 and with the methods of mathematical statistics and least squares, this work analyzes the climatological characteristics of precipitation in Gaoyao. The result is shown as follows. The annual mean precipitation of Gaoyao during this period was 1 664.2 mm, with 2008 having the most annual amount(2 221.0 mm) and 1977 the least(1 239.7 mm). Of the four seasons, summer had the most abundant precipitation, followed in turn by spring, autumn and winter. Annual mean number of rain days(daily amount≥0.1 mm) was 151.9 d, with 1975 having the most annual rain days(188 d) and 2011 the least(117 d). Maximum monthly mean number of rain days was 26 d. In general, the annual mean number of rain days significantly decreased by about 4.7 d every 10 years. For the annual number of days with rain of different intensity across the course of a year, light rain led by 102.9 d, followed in turn by moderate rain(28.6 d), heavy rain(14.6 d), unusually heavy rain(5.1 d) and exceptionally heavy rain(0.6 d). Precipitation at and above the intensity of heavy rain mostly occurred in May, June and August.