On the basis of analysis of remote sensing image and DEM, and by combining with the cluster analysis of the main factors to the ecological environment, the division and evaluation of ecological environment in Jiangxi province have been done in this paper according to the heterogeneity among landscapes and the similarity of interior landscapes with the principle and method of landscape ecology. All of this provides the objective basis for Jiangxi province government to make a long term planning on the construction of ecological economy, to effectively solve the problems of ecological environment and to make the decisions on the development of social economy and protection of the ecological environment.