English：

As a key envelope structure integrating daylighting functionality and architectural aesthetics, skylights have been widely used in modern public buildings. Common structural forms include rigid structures (beam systems, singlelayer/doublelayer grids), flexible structures (cable trusses, cable nets), and hybrid structures (beamstring structures, cable domes, etc.). This paper reviews the main composition forms of steel skylight structures, classifies and elaborates the loadbearing characteristics and design essentials of various structural systems, and focuses on the mechanical mechanisms of cablestayed and spoketype skylight structures. Meanwhile, key design considerations such as wind loads, seismic actions, and temperature effects are introduced. Based on several typical engineering cases, the research progress in structural design and construction methods is summarized. On this basis, future research directions and development trends of steel skylight structures are prospected.