Abstract:Design and implementation of cadastral query system in Weihai Economic and Technological Development Zone has been introduced in this paper. The main purpose of system development is to provide simple cadastral management and query platform for branch bureau of Weihai Economic and Technological Development Zone. System integrates modern electronic map preview, simple query and analysis, 3D digital Weihai preview and other functions. By using the second national survey of land use mapping data, and achieved the effects of geographical information systems.