Abstract: It is beneficial for the short-time forecast and long-term climate projections of the precipitation to investigate the differences in the spatial pattern and yearly variety between new and old precipitation climatology. The ERA5 and CMA-RA reanalysis data reveal the opposite precipitation changes between the new and old precipitation climatology. We tend to trust the CMA-RA re-analysis data more because CMA-RA re-analysis data assimilate more conventional observations data in China. The precipitation increases in new climatology compared to the old one, especially in southwest and north China, and the Jiangnan area. The significant increase in summer precipitation in South China, Jiangnan, Southwest, and North China is the most important reason for the increase in annual precipitation in various seasons. In addition, there is a significant decrease in precipitation in southern China during spring; The precipitation in autumn and winter shows little change. In the past 40 years, mean precipitation in China shows a clear upward trend and increased yearly variability. The precipitation intensity ranks rise in most of China. The frequency of torrential precipitation increases rapidly, leading to a higher ratio of torrential precipitation to total precipitation in south China, the Jiangnan, the Jianghuai, and the Huanhuai areas and Sichuna province. Among the major basins, the Yangtze, Haihe and the Pearl River basins have increased the risk of floods, the swift conversion of the drought and flood, and upgraded the challenge of torrential precipitation.