Due to that the reservoir is affected by multiple factors, it is difficult to measure the flow rate and flow. The section requires water flow monitoring system to realize velocity and flow monitoring through real-time continuous monitoring of multiple data such as water level, section flow rate and flow direction distribution, section area, and water temperature. For this project, the flow meter is used to monitor the flow rate online in real time, and the external water level gauge is used to measure the water level data. The on-site industrial computer collects integrated water level data, water temperature, and flow velocity distribution data, analyzes and calculates real-time flow and velocity, and transmits the flow, velocity, water level and other water regime data, as well as voltage and posture data to the on-site industrial computer. According to the system settings, the above data is collected and stored regularly and transmitted to the central server located in the reservoir via GPRS.