Abstract: Understanding dynamic changes in climate extremes is important in forecasting extreme climate events and reducing their associated impacts. The objectives of this study were to analyze the spatiotemporal variations in temperature extremes and their association with atmospheric circulation, based on daily maximum (TX) and minimum temperatures (TN) collected from 24 meteorological stations in the Poyang Lake Basin (PLB) from 1960 to 2018. Eight extreme temperature indices were used to quantify temperature extremes. The Mann-Kendall method and linear trend analysis were used to examine the trends, and Pearson correlation analysis was used to analyze the correlation between the temperature extremes and each atmospheric circulation. The results showed that: warm indices, including the number of warm nights, warm days, and summer days, and extreme indices, including minimum TN and maximum TX, showed increasing trends in the PLB from 1960 to 2018; on the other hand, cold indices, including the number of cold nights, cold days and frost days, showed decreasing trends; The spatial variation of temperature extremes were similar with its temporal variations, which shows that warm indices and extreme indices increased, whereas cold indices decreased. On the other hand, the variations of temperature extremes were differences in different regions. The decreased trends of the number of frost days and cold days were more significant in the northern of PLB than other part of the basin. The number of warm night days, summer days and minimum daily minimum temperatures increased significantly in most stations (23/24); Variations of temperature extremes were related to the changes of atmospheric circulations. Western Pacific Subtropical High Intensity Index, the summer East Asian monsoon, the Asian Polar Vortex Intensity Index and the Arctic Oscillation showed significant correlations with temperature extremes. These findings will provide reference information in forecasting extreme climate events and taking measures to reduce their associated impacts.