Based on the practices of national ecological agricultural county construction in the central and southern region of China, this paper classified the ecoagricultural engineering models of the pilot counties in the region into 7 fundamental types, and analyzed their distinctive distribution characteristics in different areas within the region. Results indicated: the average number of projects launched in each pilot county of the region was 9.5, with the average covering rate of each engineering type being 77.9 %; the type with focus on farmland cropping enterprises constituted the highest proportion among all the classified engineering types, while that with focus on township enterprises the lowest. In addition, this paper grouped the 11 national level ecological counties in the region into 6 subgroups by means of the clustering method taking the proportion of each ecological engineering type as the indicator. Furthermore, the natural resources and environmental conditions of each subgroup were analyzed and the key areas of ecological engineering construction for the respective area were proposed.