Abstract: The Jinghe River Basin is seriously affected by soil erosion,resulting in severe water and soil loss in the area. In order to provide a reference for risk assessment and prevention of soil erosion,we analyzed the spatio-temporal variations of rainfall and rainfall erosivity in Jinghe River Basin from 1957 to2017 using ArcGIS spatial interpolation,wavelet analysis and R/S analysis,based on the daily precipitation data of five stations in the basin. The results showed that there was a significant positive correlation between the rainfall and rainfall erosivity in each of the five stations in Jinghe River Basin. The annual distribution of rainfall and rainfall erosivity in the basin was uneven,mainly in summer,accounting for 67. 80% and 52. 86% of the whole year respectively; The average annual rainfall and rainfall erosivity of Jinghe River Basin were 496. 83 mm and 1 481. 24（ MJ · mm）/（ hm~2· h） respectively,both of which showed a fluctuated upward trend,with the prospect of continuous increase of the rainfall erosivity in the future. Both of the rainfall and rainfall erosivity experienced abrupt changes in 1996 and 2009,and their first main cycle was 27 a and 17 a respectively. Spatially,the rainfall and rainfall erosivity of the basin increased from northwest to southeast.