Abstract: It is one of the most important fields of presently global climate change research to study the influence of global warming on regional climate change.Based on the monthly precipitation and temperature data of Yunnan’s 122 stations and Hardley Center reanalyzed data from 1961 to 2006,and by using the methods of regressive analysis and correlation analysis,the temporal and spatial distribution of precipitation over Yunnan Province under the background of global warming was studied.The results indicated that ①The summer and autumn precipitation has reduced,the spring and winter precipitation has increased and annual precipitation has also reduced in nearly 50 years over Yunnan province;②There are obvious interdecadal change trend in the annual and the four seasons precipitation of Yunnan;③Using correlation analysis method,it is discovered that the spring and winter precipitation has increased and the summer,autumn and annual precipitation has reduced with the global and Northern Hemisphere averaged temperature warming;④There are one or several obvious abrupt points in the annual,spring,summer and autumn precipitation of Yunnan and no obvious abrupt points in the winter precipitation;⑤There is obviously regional distribution in the nearly 50 years precipitation changes over Yunnan province.The annual and autumn precipitation of the western area has increased and that of the eastern area has decreased.The spring precipitation of the whole province has consistently increased. The summer precipitation of the whole province has almost consistently decreased.The winter precipitation of the southwest area has decreased and other area has increased.