This paper firstly established the evaluation index system of land resource endowment degree from the aspects of land quantity, quality, structure and efficiency, and then evaluated and studied the land resource endowment degrees and their spatial variation at county scale in Jiangsu Province by using the polygon synthesis indicator method. The results showed that: (1) land resource endowment degree of Jiangsu Province had significant spatial differences, decreasing then increasing from south to north, and generally in an order of southern Jiangsu > northern Jiangsu > central Jiangsu; (2) from 1996 to 2006，land resource endowment degree declined overall; (3) according to regional character, pertinent measures should be taken in future to improve land resource endowment degree.