Smart water network management has become the current trends so TWC (Taiwan Water Corporation) has adopted new technology, which applies IOT (Internet of Things) concepts to analyze big data recently. Now, every branch office of TWC has implemented various monitoring sites to collect 8 parameters, including flow, pressure and quality data from the network and combined with GIS (Geographic Information System), DMA (District Meter Area) to generate analysis reporting, monitor real-time data, control leakage, operate water supply and send the alarms so as to optimize the network supply system. The purpose to develop the network supply monitoring system is to stabilize the water supply, developing from SCADA (Supervisory Control and Data Acquisition) in the early time to the latest WEB-based management system. Due to the different geographical and hydrological features from every branch office of TWC, they will develop different monitoring management systems. The study will emphasize on the 5th branch of TWC to discuss the features and benefits of the future network supply monitoring system.