Abstract:As a special economic region in a city,development zones have played great role in local economic growth, but there are still some problems in land use. Evaluation on concentrated land use in development zone has an important significance on promoting concentrated land use and supervision. Taking Tongshan economic development zone in Jiangsu province as example, establishment of database based on based on ArcGIS technology has been studied in this paper, and evaluation and potentiality measurement has been carried out as well.