Daily precipitation data from 659meteorological observation stations were used to calculate the interannual and decadal heavy rainfall and heavy rainfall days in China.Then,based on China's climate change regionalization(19612010),heavy rainfall in China was analyzed.The results show that in the increasing and decreasing trend of total precipitation fall in the region climate change regionalization in China,most of the heavy rainfall rendered the corresponding interannual and decadal increasing and decreasing trend.But there are also decreasing trend in total precipitation in I1 temperature fluctuation increasing,precipitation fluctuation decreasing of XiaoxinganlingChangbaishan MontainSanjiang Plain of Northeast ChinaNorth China warm-dry trend zone andⅢ3temperature fluctuation increasing,precipitation fluctuation increasing of YunnanGuizhou PlateauWestern Nanling MountainHills of Southwest ChinaSouth China dry-warm trend zone and,whereas heavy rainfall shows increasing trend;on the contrary increasing trend in total precipitation fall inⅣ1 temperature fluctuation increasing,precipitation fluctuation increasing of Southeast Tibet MountainPlateau of Southeast TibetSouthwest China wet-warm trend zone,whereas heavy rainfall shows decreasing trend.The similar conclusions can be drawn under the short duration and long duration of heavy rainfall.It shows that the existing primary and secondary climate change regionalization(19612010) reflect the changes of heavy rainfall to a certain extent.But it still need to use extreme precipitation as an indicator of the three divisions of the China's climate change regionalization(19612010)to analyze the heavy rainfall in China.