Abstract: Abstract: Based on the data of religious sites in Jiangxi Province, and taking cities and counties as the basic research units, this paper mainly studied about Buddhism, Christianity, Taoism and Islam. With the help of traditional mathematical statistics, ESDA and spatial analysis methods, spatial- temporal evolution of the major religious sites in Jiangxi Province has been analyzed and the mode of religious development stages have been summarized. The results are shown as follows: after the founding of PRC in 1949, especially since the reform and opening-up in1978, religions of Jiangxi Province has an unbalanced development both in time and spatial dimensions. Performances in time dimension are that since the reform and opening up, the total number of four religious sites has increased continuously and most obvious increase is the number of Buddhism sites and the growth rate of Taoism sites. Meanwhile, Buddhism and Christianity in space has shown a positive correlation and formed an aggregative trend. In addition, the phenomena of over-agglomerate and rapid expansion exist in different religion. Then performances in spatial dimension are that the spatial structure of the dominated religions changes significantly and the spatial distribution of dominated religions tends to be dispersed, that contribute to form the regions composed by a variety of dominated religions. At the same time, intensive areas of four religions spread from the south to north and then to be a north-south strip distribution. In the end, the mode of religion development stages shows that the evolution of religions has its own internal dynamic mechanism and affected by many other factors. Competition and merging, mutual constraint and balance among religions make the regions go through religious discrete stages, dominated religions gathering stages, and finally form the religious large fusion.