Abstract: The low-altitude intelligent networked system is a technology-driven governance system that relies on integrated digital infrastructure-including communications, navigation, and sensing; it centers on multi-level (national, provincial, and municipal) coordinated cloud platforms and is featured by networking, digitization, and intelligence with an aim to achieve intelligent control, coordinated operation, and efficient service delivery in low-altitude airspace, thus an essential requirement for the high-quality development of the low-altitude economy. Within the three-tier national-provincial-municipal structure of the system, the national-level system establishes a comprehensive low-altitude data aggregation framework, performs top-level functions such as coordinated management of national airspace resources, cross-departmental coordination and integrated oversight, and planning for the low-altitude economy; provincial-level systems are responsible for refined management and dynamic release of low-altitude airspace within their jurisdictions, build provincial low-altitude information infrastructure nodes, provide information and intelligence services, and organize and coordinate emergency response and safety supervision within the province; municipal-level systems serve as the "execution terminals" and "service windows" of the three-tier national management framework. Currently, three distinct models of low-altitude intelligent networked system construction with different approaches are emerging nationwide:"department-led pilot demonstration", "government-led unified network management", and"market-driven diversified development". To establish a safe, efficient, and coordinated low-altitude regulatory system, the following measures can be adopted: strengthen top-level design and coordinated planning to build a collaborative management system; advance refined management of airspace resources to construct a new governance system for low-altitude airspace; develop a standardized low-altitude intelligent networked system to break down data silos and enhance technological iterative capabilities; and establish a new low-altitude safety law-enforcement system to address operational challenges.

Key words: three-tier low-altitude intelligent networked system, coordinated framework, safety supervision, low-altitude economy