Urban drainage monitoring system and water quality and quantity monitoring method implemented by same

The invention relates to an urban drainage monitoring system and a water quality and water quantity monitoring method implemented by the same. The monitoring system comprises a water inlet system, an automatic water quality monitoring module, an automatic water quantity monitoring module and a data acquisition and control module. The monitoring system can respectively monitor water quality and water quantity according to set automatic modes in non-rainfall periods and rainfall periods, and running of the various modules can be controlled in a manual mode. Compared with the prior art, the urban drainage monitoring system and the water quality and water quantity monitoring method have the advantages that bottlenecks such as long response time, low data acquisition frequency and complication in maintenance of existing online water quality and water quantity monitoring equipment are overcome, and water quality and water quantity change processes in the non-rainfall periods and the rainfall periods of a drainage system can be accurately, quickly, continuously and automatically monitored in real time in an online manner.