Well-facilitied farmland construction is an important step toward implementing the “storing grain in farmland” strategy to ensure national food security in China. Scientific zoning and project sites are important for improving grain production in an effective manner. Aiming to improve the zoning process, Xinzheng city was considered as a study area for the implementation of well-facilitied farmland construction according to the coupling coordinated degree of suitability and spatial stability. The suitability index and spatial stability index were evaluated using an improved catastrophe progression model, which avoided the problems of subjective weights and aggregated evaluation results. The results demonstrated that Xinzheng city was suitable for well-facilitied farmland construction, which was divided into four types: preferential construction, main construction, regulation construction and unsuitable construction areas, with total land areas of 27004.83hm2, 17040.40hm2, 4361.16hm2 and 5761.55hm2, respectively. Areas assigned with these four types should be developed according to their specific characteristics. Thus, high-quality modern agriculture needed to be developed vigorously in the preferential construction areas. The main construction areas should be utilized efficiently with support by project regulation. The regulation construction areas needed to focus on optimizing the cultivated land layout and upgrading potential. In unsuitable construction areas, efforts should be made to restore the soil productivity, improve the ecological environment for cultivated land and enhance the capacity to resist extreme conditions. Based on zoning, hot and cold spots analysis using a geographic information system was employed to analyze the spatial patterns of the coupling coordination degree, and 10 project regions were selected accurately from these hot spot regions. Furthermore, the main obstacles in each project region were diagnosed to identify the next steps for development in Xinzheng city.