Abstract: The land use data is the main geographical data and will play an important role in the control of agriculture nonpoint source pollution of HanBuhe Drainage Basin. On the basis of homemade GIS software named SuperMap, the professional database system has been developed to collect, manage, and renew the land use data，which runs stably and safely and is easy to expand further. The article introduces the method of data collection, the mode of data management, and main functions of the system.