[Objective] Taking areas of cropland and coal resources as a case study to research land use function in order to provide support for the development of regional function.[Methods] From production-living-ecology aspects, 15 indexes with different function were selected to construct a suitable evaluation index system in study area. Based on the established index system, the land use function was evaluated quantitatively using entire-array-polygon indictor method from 2009 to 2015.[Results] ① The entire-array-polygon indictor method used in this study was intuitionistic, accurate, widely involved and low subjective. It could be applied to evaluate regional land use function. ② The single index showed that the indexes of each subsystem tended to change slightly, but the dominant obstacle factor remained stable in 2009-2015. ③ Within the 7 years, the production function was the regional leading function in the study area. Due to the regional impact of coal mining, cut-off point of intensive land use comprehensive index occurred in 2012, and showed an increasing trend initially and then decreased.[Conclusion] Coal mining activities have a significant impact on land use in the areas of cropland and coal resources, and the level of regional land function change and land intensive use is close related to the development and change of regional coal industry.