In order to make an in-depth study of the characteristics of high temperature and drought in Jiangxi Province, the assessment model for regional high temperature and drought processes was constructed based on daily precipitation and temperature data from 81 national meteorological stations in Jiangxi Province from 1959 to 2022, which included indicators such as influence range, process duration and intensity. And regional high temperature and drought processes in Jiangxi Province in the past 64 years, especially the abnormal characteristics of regional high temperature and drought processes in 2022 were comprehensively analyzed and evaluated. According to the coincidence days of hot and drought, the compound year of hot and drought was defined. The results show that 277 (90) regional high temperature (drought) processes occurred in the past 64 years, and in 37 years the hot and drought processes appeared in the same year, and in 22 years high temperature and drought overlapped for more than 10 days. The increase of compound hot and drought years is particularly significant after 2000. The average daily temperature and the average of daily maximum temperature in Jiangxi Province in summer and autumn of 2022 were the highest at the same period since 1959. There were 5 regional high temperature processes in the summer and autumn of 2022，which lasted for 71 days. The comprehensive strength of the high temperature process from July 20 to August 30 of 2022 reached extra heavy grade, which ranked the first in history. The average rainless days in Jiangxi from late June to mid-November in 2022 reached 124.1 days. Persistent high temperature and little rainfall in summer and fall in 2022 led to continuous severe drought in Jiangxi Province, and the intensity of meteorological drought was the second severe drought process since 1959.