The purpose of this paper is to find an effective method to manage the intersection of urban and rural cadastral data in the city of Nanjing. We select the intersection by the help of Arc GIS and we propose the method of data cleaning and the principal of land right determination. Furthermore,we update urban and rural cadastral database,and implement the seamless connection of the mentioned database. Results show that Arc GIS plays a significant role in the data processing and the method is also worth learn...