The invention discloses a big data-based urban drainage network monitoring control system. The big data-based urban drainage network monitoring control system comprises a man-machine interaction module, an alarming module, an external source weather module, a data storage module, a pipe and pump station information base, an analyzing module, a flow sensor, a pump station, a pump station monitoringmodule, a pump station water level monitoring module, an inspection well water level monitoring module and a valve front end. The big data-based urban drainage network monitoring control system can analyze and compute water drainage in an urban drainage network through the analyzing module to adjust the drainage velocity of the pump station in work and reduce the start-stop frequency of the pumpstation, and meanwhile, timely empty a water collecting well through the connected external source weather module to improve the water storage capacity of the drainage network in rain and reduce the possibility of urban flooding; besides, by analyzing the water flow in drainage pipes through the analyzing module, the big data-based urban drainage network monitoring control system can help timely discover damaged or blocked section and implement dredging, maintenance and replacement operation to ensure normal operation of an urban drainage system.