The evaluation of ecological environment status is of great significance for promoting regional ecological protection， evaluating the effectiveness of ecological civilization construction， and guiding regional development and planning. Using remote sensing data and comprehensive evaluation method to evaluate the ecological environment in the region can provide strong support for regional sustainable development. Based on the Technical Criterion for Ecosystem Status Evaluation， establish an Improved Ecological Index （IEI）， dynamically evaluate the ecological environmental and its evolution characteristics of Jiangxi Province from 2000 to 2020. Furthermore， the ecological environment was comprehensively zoned. The results show that： ①From 2000 to 2020， the average IEI of Jiangxi Province was 69.74， the area of excellent， good and general grade accounted for the largest proportion， all above 40%.②The ecological environment of Jiangxi Province is in a stable state as a whole. The area of significant reduction of ecological environment is small and concentrated， accounting for 1.96% of the province. The area of significant increase of ecological environment is large and scattered， accounting for 9.44% of the province. ③All the 11 cities in Jiangxi Province are in good grade except Nanchang City， and Nanchang City is in general grade. Among them， Jingdezhen， Pingxiang， Ganzhou， Jian and Fuzhou City exceed the average level， and the ecological environment is in good condition. ④According to IEI， Jiangxi Province is divided into 11 eco-geographical units. Among them， Gannan， the eastern foot of Luoxiao Mountain， the western foot of Wuyi Mountain， Raohe River， Fuhe River and Xiushui River Basin have serious soil erosion and high degree of landscape fragmentation. The core area of Poyang Lake and the transitional area of hilly plain in the lower reaches of Ganjiang River have the problems of poor habitat quality and vegetation growth. The research results can provide theoretical basis and scientific reference for the protection and restoration of ecological environment in Jiangxi Province and other geographical units in China.