The pressure of global emission reduction increases sharply under the temperature control targets of 1.5 C and 2 C set by the Paris Agreement. In view of solar radiation management,which is most discussed in geoengineering, the spatial-temporal distribution and difference of precipitation in China during 2010-2099 were statistically analyzed based on the BNU-ESM geoengineering (G4 experiment) and non-geoengineering (RCP4.5) scenarios. The results show that: (1) geoengineering is beneficial to the increase of China's total rainfall over time series. The precipitation of China in 2010-2099 and 2020-2069 scenarios showed an increasing trend,and the increasing trend of precipitation in 2010-2099 scenarios under geoengineering scenarios was greater than that under non-geoengineering scenarios. However,there was little difference between the two scenarios in 2020-2069. In 2070-2099,after the implementation of geo-engineering,the precipitation under geo-engineering scenarios increased,but not geo-engineering scenarios decreased. The precipitation variation trend of seven geographic zones was higher than that under non-geo-engineering scenarios. (2) In the spatial pattern,the spatial distribution of precipitation in China was similar in different research periods under the two scenarios,but the area distribution was different. During the implementation of geo-engineering,the precipitation in most areas decreased,and the precipitation in 2070-2099 after the completion of geo-engineering was significant. (3) The area of increasing precipitation under the geoengineering scenario in 2010-2099 was larger than that of non-geoengineering scenario,especially after the implementation of geoengineering in 2070-2099,the area of increasing precipitation in China increased significantly. The characteristics of rainfall fluctuation in geo-engineering scenarios are smaller than that in non-geo-engineering scenarios,and the annual variation of rainfall in China is relatively stable under geo-engineering scenarios.