Abstract: Climate engineering, as a fast and effective means of cooling the earth, has become one of the focuses of discussion in the international negotiations on climate change. To diagnose whether different stages of climate engineering have an impact on rainfall structure in China under the current GeoMIP model. According to the daily rainfall intensity classification standard of the Central Meteorological Observatory of China Meteorological Administration, 0.5°×0.5°spatial resolution daily precipitation data of the solar radiation management climate engineering G4 experiment and RCP 4.5 scenario based on the BNU-ESM model , the spatial differences of rainfall amounts and rainfall days contribution rate of different grades in China during the three different periods of implementation of climate engineering, namely, 2010-2099, 2020-2069 and 2070-2099, are compared and analyzed. The results show that: Firstly, in the climatic state, there is a good consistency between the climatic state of different grades rainfall in China in three periods under the two scenarios. Climate engineering has not changed the spatial characteristics of rainfall structure in China. Secondly, in the differences between climate engineering and non-climate engineering, different stages of implementation of climate engineering can indeed have an impact on rainfall structure in different regions of China, and the differences are different in different periods. Thirdly, in the difference before and after the implementation of climate engineering, the implementation of climate engineering promote moderate rainfall, heavy rainfall and total rainstorm events, but restrained light rainfall events. Under the current GeoMIP model, the implementation of climate engineering will have different impacts on rainfall structure in China.