Prestressed steel frame light plate

The utility model relates to a light plate applied to a building, and in particular relates to a prestressed steel frame light plate. The prestressed steel frame light plate comprises two main keel steel pipes arranged in parallel, wherein a plurality of auxiliary keel steel pipes vertically and fixedly connected with the main keel steel pipes are evenly arranged between the two main keel steel pipes in the length direction of the main keel steel pipes; a layer of bar-mat reinforcement connected with the auxiliary keel steel pipes is laid under the auxiliary keel steel pipes; every two adjacent auxiliary keel steel pipes are matched with the two main keel steel pipes to form a separate cavity, and a plurality of polystyrene boards are evenly arranged in each separate cavity; the gap between the two main keel steel pipes is filled with concrete, and the auxiliary keel steel pipes, the bar-mat reinforcement and the polystyrene boards are covered with the concrete. The prestressed steel frame light plate is reasonable in structural design, high in bearing capacity, low in dead weight, good in heat preservation, thermal insulation and sound insulation effects, good in shock resistance and high in compressive strength; no damage is prone to be caused during construction, the construction cost is reduced, the resources are saved and the problems in the prior art are solved.