The traditional centralized or monolithic application architecture can no longer meet the needs of modern hydraulic engineering safety supervision, especially when dealing with business expansion and system upgrades, it is easy to encounter bottlenecks. This paper designs a hydraulic engineering safety supervision platform based on microservice architecture. Firstly, the service partitioning was carried out by researching microservice partitioning methods and integrating them with the specific characteristics followed by a detailed introduction of the platform's implementation process. By applying microservice selection in Shanmei renovation project, it has been verified that the platform can significantly improve the efficiency and accuracy of safety monitoring, and provide flexible and scalable solutions for other hydraulic projects.