Focusing on the achievements and existing problems in the construction of the comprehensive management digital platform for river and lake chief system, this paper summarizes and analyzes the current status of the platform’s architecture, content, and functionality from four aspects: the digital platform, technical route, database, and platform functions. It provides prospects from various perspectives, including respecting the platform construction rules, enhancing top-level design, establishing a data-sharing mechanism, achieving integrated monitoring of sky, ground, and water, strengthening the application of big data and artificial intelligence technologies, realizing long-term collaborative supervision, compiling technical standards and specifications, and designing platform construction strategies. The research results indicate that the digital platform is fundamental to supporting core business, data sharing and collaborative supervision are the foundation of the digital platform, and intelligence and automation are the technologies or methods adopted by the digital platform.