In view of the application of large and medium-sized sluices, a kind of intelligent monitoring device for sluice is developed. The hardware and software design of the device and its practical application and effectiveness in Shaji control gate project of Jiangsu province are emphasized. The device can realize the intelligent group control of the sluice and improve the dispatching efficiency of the sluice under the requirements of the overall dispatching goal of the sluice, and has a good application and popularization prospect.