Abstract: In order to speeding up the process of agricultural modernization in Yongxing County, to realizing the agriculture regional sustainable development. The paper grade evaluated agricultural resource condition, social development of rural areas, agriculture economic conditions. Screening out three kinds of index to constructed the index system of regionalization of agricultural function in Yongxing County. Using the principal component analysis and cluster analysis method, dividing Yongxing County agricultural function areas into the central breeding region, the north-central forestry area, the south-central agricultural areas, the eastern agricultural region and the western growing areas five agricultural function areas, meanwhile, described the resources characteristic of each function zone. Put forward the general orientation of agricultural development and the key advantages of industrial development model of each function zone.