Jiangsu coastal district are dramatic and fragile ecosystem sensitive areas. which located in north of the subtropical and warm temperate zone in the transition zone, and beach land resources are very rich, density of water network. Coastal areas is an important grain, cotton, oil origin of of Jiangsu Province. Under the "coastal development strategy", the implementation, resulting in dramatic changes in land use pattern, over increasing competition between classes, of cultivated land as the essence of the land, its security is more and more attention. In this paper, as the study area along the coast of Jiangsu Province, based on landscape ecological security theory, remote sensing and spatial analysis, landscape ecology from a safety point of land estimated 20 counties of the coastal landscape ecological security index, on this basis, focusing on the 1995-2005 arable land in Jiangsu coastal ecological security structure change and driving. The results showed:1995-2005 in 19 coastal counties and cities in Jiangsu Province, the safety of farmland landscape, combined with Nature Break method, can be divided into three levels, Ⅰ-class district, ES ≤ 0.45, Ⅱ grade zone, 0.45 0.75. Coastal Region farmland landscape security pattern was significantly different characteristics, ecological security landscape in 1995, cultivated land, Ⅰ level mainly distributed in the northern entrance for the study area, Lianyungang City, Guanyun, such as 5 Guannan and Xiangshui counties, Ⅱ grade mainly distributed in the study area, north-central region Funing, coastal counties, Jianhu, Donghai County, Yancheng, and the 5 counties, Ⅲ grade mainly distributed in central and southern study area 10 counties; compared to 1995, 2000, Landscape ecological security grade Ⅰ cultivated area increased by Donghai County, the coastal counties and Funing, mainly in the northern study area, Ⅱ grade distribution more dispersed areas include Jianhu, Yancheng, Rugao City, County and MSC, Ⅲ grade zone in 1995 based on the reduction of the coastline and Rugao; to 2005 in Jiangsu Province-level ecological security of coastal farmland landscape area on the basis of 2000 continued to expand, mainly In the northern study area, Ⅱ grade areas mainly concentrated in the southern region, Ⅲ grade areas concentrated in the central study area, including Sheyang County, a large County, eastern Taiwan counties and Rudong.1995-2005, Jiangsu Province, ecological security of coastal farmland landscape pattern change of the main features, Ⅰ-class areas are more significant pattern changes, mainly grade Ⅰ area north to the south-central region by the expansion of its scope be changed by the District Level Ⅱ The main proof from the man-land relationship began to change tension in the region, such as the sound of water, Funing and other regions; Ⅱ-class areas are more dispersed pattern changes, mainly to grade Ⅱ Ⅲ level area to area over; farmland landscape-level ecological security zone Ⅲ narrowing the scope, mainly on the grounds in the southern region to reduce the central region, from inland to coastal areas to promote, such as the Yancheng City, Rugao City, 1995-2005 MSC County Farmland landscape ecological security changes are a manifestation of this feature. Regression model for the landscape ecological security index and the driving factor analysis, regression model showed that in 1995-2005 the county level in Jiangsu coastal farmland landscape pattern change and ecological security were the main drivers of the national economy the size of GDP> Population density> road density> the number of land consolidation projects> regional construction land ratio.