In the context of global climate change and rapid urbanization,climate governance has become one of the unavoidable challenges of human society.Therefore,climate engineering is increasingly mentioned in the international climate negotiations.According to the climate in the most controversial engineering method of solar radiation management,BNU-ESM model based on climate engineering (G4) and non climate engineering (RCP4.5) two,with 2010-2099 years of rainfall data of 95% and 99% percentile as heavy rainfall and extreme rainfall event threshold.The data of over threshold sampling (POT) were fitted by Weibull distribution to diagnose the heavy rainfall and extreme rainfall in 10,20,50 and 100 years return period.The results showed that:in two scenarios,with the increasing strength of heavy rainfall and extreme rainfall in the enhanced,and showed a southeast highnorthwest low spatial characteristics.Climate engineering,in general,contributes to the increase in heavy rainfall and extreme rainfall in China,as well as spatial heterogeneity,which represents the suppression of heavy rainfall and extreme rainfall in parts of the country.This research is of great significance for the future global climate control and regional climate adaptation.