Based on the analysis of regional natural characteristics and the resources utilization status of Jiangsu province, the problems on the sustainable land use and the potentiality of agricultural development are studied. The countermeasures how to achieve the agricultural sustainable development are also proposed. Those are: (1) to strengthen harnessing of the small watershed and transformation of the medium low yield farmland, and fulfill the effective agricultural development model in the hill area; (2) to improve the construction of ecological agriculture demonstration base of innoxious foods, green foods and organic foods; (3) to adjust the agriculture structure and advance the proportion of forestry, stock farming, vegetable and herbage and so on; (4) to strengthen the investment on technology and run up the proportion of technology in the comprehensive development projects of agriculture.