Innovative Practice of Integrated Application of Smart Water Supply and Drainage is provided by China Unicom Xiongan Industrial Internet Co., Ltd. Relying on the core advantages of China Unicom's cloud-network integration and IoT-network collaboration, it is an independently developed smart water supply and drainage platform product for county-level water supply companies, water affairs bureaus/water conservancy bureaus, and housing and urban-rural development/urban management bureaus. Focusing on the four scenarios of production management, pipe network management, marketing services, and drainage and waterlogging prevention, it collects real-time dynamic data of the whole process of water production, water supply, water sales and drainage, conducts scientific command, reduces energy consumption, helps the digital transformation of the county-level water industry, and improves the efficiency of water affairs management. At the same time, it provides data aggregation and analysis, as well as global monitoring and management, providing data support for command supervision and scientific decision-making. The achievement has been implemented in 35 projects nationwide, with a contract value of more than 100 million yuan, helping the digital transformation, energy conservation and efficiency improvement of the water industry.