In this paper,the systematic thought and ecological principle are applied to set forward a model frame of the method of planning and design of the land use in the agricultural region.In doing so,the center is the study of the operational and developmental process of the coupling of land, food and human, and the aim is to establish a rational land use system. The items concerned include object design, land evaluation,agroecosystem analysis, the simulation model of the quantitative study of the land use system, the optimazation of the land use structure, the ecological design of the land use system,and the design of the multi-layer artificial control system.