Abstract:The visualization supervision system can provide an important technical support for provincial department of land and resources in decreasing urban construction using land and increasing rural agricultural using land. Geographical spatial data is the foundation. It can provide a variety of the space and dynamic geographic information and realize the information visualization. The basic function of visualization supervision system is to turn data type (datas of database and directly inputted datas in the program) into geography graphs, and then the results can be displayed, operated and analyzed. In this paper, development environment, overall design, and key technology of visualization supervision system have been introduced.