Abstract: Based on the daily precipitation data of 25 meteorological stations in the Beijing-Tianjin-Hebei urban agglomeration from 1964 to 2018, we use the method of anomaly, Mann-Kendall test, linear fitting and spatial interpolation analysis to obtain precipitation from many years and precipitation during the year. And the precipitation of the Beijing-Tianjin-Hebei urban agglomeration is analyzed in three aspects: average precipitation, annual precipitation distribution and extreme precipitation. The results show that: (1) The average annual precipitation in the Beijing-Tianjin-Hebei urban agglomeration fluctuates significantly, showing no significant decrease. The space is characterized by “less east, more west, less south and less north”, and the precipitation variation coefficient is between 0.14-0.41. Yanshan Mountain and Haihe Plain have larger varying coefficients and higher dispersion. (2) The precipitation in the Beijing-Tianjin-Hebei urban agglomeration shows a trend of concentration during the year. The spatial performance is characterized by a gradual decrease from the northeast to the southwest. The precipitation is mainly concentrated in the late July, and the concentration period shows a trend of not significantly premature. The space shows a trend of increasing from the north to the south. (3) The extreme precipitation in the Beijing-Tianjin-Hebei urban agglomeration is 129.57-252.68 mm, accounting for 28.6%-47.9% of the total precipitation. The spatial distribution of extreme precipitation is the same as that of annual precipitation, and only 7 meteorological stations have a stable trend.