Abstract:[Objective] The temporal trends of rainfall, erosive rainfall and rainfall erosivity in Dongfang City of Hainan Province from 1956 to 2015 were analyzed to provide scientific support for the study of ecological environment construction, the soil erosion and soil erosion mechanism.[Methods] Based on the daily rainfall data from meteorological stations in Dongfang City from 1956 to 2015, indexes of coefficient of variation, trend coefficient and climate tendency rate were used toanalyze the trends of rainfall, erosive rainfall and rainfall erosivity in different time scales.[Results] ①The average annual rainfall,the average annual erosive rainfall and the average annual rainfall erosivity in Dongfang City were 982.9 mm, 816.1 mm and 9 441.7 MJ·mm/(hm2·h·a), respectively. Their coefficients of variation were 29.1%, 35.7% and 45.5%, respectively. ②Over the past 60 years, the annual variations of rainfall, erosive rainfall and rainfall erosivity all showed increase trends, with coefficients of 0.129, 0.156, 0.198. At seasonal and monthly scales, though big differences existed for all of the three rainfall indicators, the overall pattern of change was similar, that was a unimodal distribution. ③There were a strong linear correlations among rainfall, erosive rainfall and rainfall erosivity, and also power function can reflect their relationships better than the linear one.[Conclusion] Over the past 60 years, rainfall, erosive rainfall and rainfall erosivity all showed obvious inter-annual trends of increase, they can be described well with power function among two of the three variables.