The farmland resource management information system of Yongji City in Shanxi Province was established based on the Geographic Information System (GIS) technology.The system manages spatial database and attributive database with MapGis, and data input, application model analysis and statistics database with FoxPro, and overlays the current landuse map with the basic farmland protection map and the soil map, forming 6 782 patches, which are used as the basic management and evaluation cells of the spatial database, thus conforming land and soil type in every evaluation cell.The model of Analytical Hier archy Process (AHP) and fuzzy comprehensive appraisement were developed with Visual C++ language.Aimed at the actual conditions of Yongji City, it was decided through discussion among the expert group that 15 indexes were chosen out of 64 indexes for investigation of farmland productivity and evaluation of land quality.The 15 indexes were used to calculate the comprehensive evaluation index of each cell, which can be used as a basis for evaluation of farmland quality.The results of the evaluation show that the city is facing a series of problems, with its farmland, such as unreasonable fertilization structure, increasing acreage of low and moderate yield farmlands, neglected salt affected soil and Lutu soil.On such a basis, countermeasures were put forth with the aid of the system, it is easy for the city to gain full knowledge of productivity and quality of its farmlands and lay down a solid basis for building up soil fertility and soil amelioration.