Abstract: Seismic geology, bands, gaps, and energy; the spatiotemporal distribution of seismic activity; and the frequency of small earthquakes were used to track the characteristics of the seismic activity in southern Jiangxi and its adjacent areas (23.66°N～27.20°N, 113.50°E～118.84°E). Earthquakes of magnitude 4.0 or higher in the region were synchronous with earthquakes of magnitude 5.0 or higher in the southeast coastal seismic zone. Earthquakes of magnitude 2.5 or higher have appeared in the surrounding area since 2018. Earthquakes of magnitude 3.0 or higher have occurred in belts since 2020; the clustering of moderate earthquakes has increased, and earthquakes of magnitude 4.0～5.0 have not occurred, indicating a state of energy accumulation. In July 2016, the southeastern coastal seismic zone entered the fifth active phase since 1900, with active earthquakes of magnitude 5.0 or higher. Southern Jiangxi and its adjacent areas are involved. A risk exists of earthquakes of magnitude 5.0 or higher occurring in the next 1～3 years, and special attention should be paid to seismic activity in the border areas of Jiangxi, Guangdong, and Fujian.