To enhance the collection,integration,analysis,and application capabilities of deep-water navigation data,a construction practice of the Deep-water Navigation Channel Field Observation Data Service Platform is conducted at the Obeservation and Research Base of Transport Industry and of Water-Sediment Environment and Engineering Safety of Nanjing Yangtze Deep-water Channel.The service platform adopts a B/S architecture,connects various data clusters through technologies such as the Internet of Things (IoT) and distributed construction,combined with commonly used network transmission protocols,and realizes the integration and governance of heterogeneous historical data from multiple sources,the access of real-time monitoring data and the aggregation of third-party data.Furthermore,it develops special applications such as the data portal,waterway “One Map”,engineering application,monitoring dashboard,and the water level prediction application.The platform realizes the aggregation and sharing of data,with a thematic focus on deep-water navigation channels.