According to an embodiment of the present invention, a water supply pipeline network management method comprises the following steps: setting a sub basin in a water supply pipeline network map which is divided in a unit block and includes water pipelines and valves in the unit block wherein data is input; displaying a water supply moving direction in the sub basin on the water supply pipeline network map; analyzing the water supply moving direction and displaying the valves capable of interrupting the movement of water supply in the sub basin; selecting a valve to be interrupted among the displayed valves; and notifying operation information to a customer whose water supply will be cut off by the valve which will be interrupted.
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