Abstract: Based on the precipitation data from Dashankou,Huangshuigou and Kerguti hydrological stations in the low mountains around Yanqi Basin and the meteorological stations in Yanqi and Heshuo in the central basin,M-K trend analysis and wavelet analysis were used to analyze the variation characteristics of precipitation in the Yanqi Basin from1960 to 2019. The results are as follows. In the past 60 years,the annual precipitation in the basin shows an increasing trend,with obvious vertical distribution and north-south difference. The precipitation gradually increases with the elevation. The precipitation in the northern piedmont is greater than that in the southern piedmont,and that in the western piedmont is greater than that in the eastern piedmont. The annual precipitation distribution is extremely uneven. The annual precipitation is mainly concentrated in the flood season,and there is little rain in winter and spring. The difference between the maximum and minimum annual precipitation is 4. 6 to 11 times. Due to the different geographical location and altitude,the mutation time was concentrated in the 1970 s and 1980 s. At the same time,there is a 7 ～ 9 oscillation cycle,but the first main cycle varies from station to station. The large-scale cycle is nested with the small scale cycle change,which is conducive to the utilization of water resources in Yanqi Basin. The results could provide scientific basis for Yanqi Basin to actively cope with climate change and rationally utilize water resources.