Abstract: In order to upgrade the efficiency of fertility level information of farmland in agricultural production, it is indispensable to use cross analysis and integrative application with evaluation of farmland productivity and formula fertilization based on soil-testing. This paper was to investigate the application of Analytic Hierarchy Process (AHP) in soil fertility assessment and its classification，so as to make a comprehensive evaluation of farmland fertility in Fuyang county in China. In order to provide technical support for the scientific fertilizers, chosing GIS as spatial data analysis tool, chosing current farmland utilization map (1:10,000) as the evaluation unit, using AHP to select weight value, the score of each evaluation unit with the cumulative method was calculated. Results show that 80.92% of the total farmland belongs to the second or third level; and there is only 5.59% low-yield farmland among all the agricultural land in Fuyang. The overall quality of farmland of Fuyang is in good condition. And there exists strong advantage in agricultural production in Fuyang. Besides, the new fertilization plan provided by this research is better than the previous fertilization recommendation.