To provide a operation controller for water supply system capable of automatically planning a water distribution schedule considering the various kinds of conditions from demand prediction for the equipment on the spot of water distribution facilities scattered in a wide range and performing automatic control to the equipment on the spot.

An adjustment pond scheduled water level is set, the partial charge scheduling of an intake amount/an adjustment pond utilization water amount/an insufficient water amount matched with the daily water amount of the demand prediction 10 is performed and pump operation scheduling is performed so as to secure a required daily water amount. Also, hourly water distribution scheduling matched with the hourly water amount of the demand prediction is performed based on the partial charge schedule of the daily water amount and the pump operation schedule and the water level/water amount of the schedule and a pump operation time band are displayed on a CRT screen by a graph and a list. Further, correction by the difference of prediction and results is reflected on a water distribution schedule value from result data 15b or state data and the changeover of control object facilities in the case that the condition of control changeover is established in the facility state of controlling a water distribution flow rate and the cancellation of an automatic operation in the case of causing a state different from an automatic operation state are performed.