Abstract: To enhance the comprehensive dispatching capability of the Yangtze River Basin, solve the problem of collaborative management with multiple objectives and constraints, and avoid data silos and redundant construction, this paper developed the water conservancy data model service platform in the Yangtze River Basin.Based on the Spring Cloud Alibaba framework, the platform integrates data and models from multiple fields such as flood control, water volume, and ecology.The platform realized the functions of service registration, service management, unified gateway and statistical analysis, and provided a unified data and model registration and invocation interface.This paper took the integrated dispatching support system and the water and rainfall data quality control system as examples to illustrate the application methods and effects.After comparison, the systems had been improved in terms of computational efficiency and data accuracy.The results can provide technical reference for building a standardized and easily extensible water conservancy data sharing platform.