Water environment governance is an important part of establishing Yangtze River and Huaihe River(Jianghuai)Ecological Corridor. Through field investigations, the current situations and existing problems in the supporting role of science and technology to the water environment governance of Jianghuai Ecological Corridor are analyzed, and the paths to lift the support are discussed. Some suggestions are put forward to strengthen the support of technology to the water environmental governance in the Corridor: actively promoting the progress of key projects and enhancing investment, improving the administration and scientific research institutions and increasing personnel input, strengthening the innovation of technology and platform construction, promoting the exchanges and cooperation as well as the technology training, strengthening information construction and enhancing the system construction, etc. The results may provide reference for the water environment governance practice of Jianghuai Ecological Corridor.