This article provides a detailed comparison of the single-layer cable suspension structure and the double-layer cable truss structure in flexible solar mounting system, outlining their characteristics, advantages, applicable conditions, and usage scenarios to help you choose. This article provides a detailed comparison of the single-layer cable suspension structure and the double-layer cable truss structure in flexible solar mounting system, outlining their characteristics, advantages, applicable conditions, and usage scenarios to help you choose. The embodiment of the invention provides a support truss of a photovoltaic bracket, the photovoltaic bracket and a photovoltaic power station, which comprise a first section bar and/or a second section bar; the first profile comprises a first web plate, a first upper flange plate and a first lower. The flexible photovoltaic support system is one of the systems that have been proposed to support photovoltaic modules with wide application potential in recent years. It has the advantages of large span, fast construction speed, and can adapt to complex environments. This kind of support system. The invention relates to the technical field of photovoltaic supports, in particular to a flexible photovoltaic support structure, which comprises an anchor frame used for connecting a foundation and a plurality of cable trusses arranged on the anchor frame and used for connecting photovoltaic. With the rapid development of the photovoltaic industry, flexible photovoltaic supports are increasingly widely used. Parameters such as the deflection, span, and cross-sectional dimensions of cables are important factors affecting their mechanical and economic performance.