Abstract:A supervisory control and data acquisition (SCADA) system has collection and data transfer capabilities as well as the ability to remotely control and monitor device. Geographic Information Systems (GIS) are computer-based systems designed to support the capture, management, manipulation, analysis, modeling and display of spatially referenced data at different points. The paper describes the implementation approach of an integrated Water Supply Network Dispatching system (WSNDS) base on GIS and SCADA system. GIS can support building hydrodynamic models by generating automated input from SCADA system, increasing the accuracy of the system modeled and displaying model output graphically. Key Words:SCADA GIS Water Supply Network Dispatching system