The utility model relates to a hollow superimposed sheet of prestressing force belongs to general building construction field. This superimposed sheet includes prefab (1) and superposed layer (2), prefab bottom plate (3) thickness >= 35mm just <= 60mm, prestressed wire in the bottom plate (4) are located transverse reinforcement (5) upper portion, all stretch out >= 50mm from the bottom plate, prefab width >= 1500mm, arrange light material filling member (6) on the upper portion of every prefab, the solid rib of concrete (7) height >= 50mm between the adjacent filling member, transverse reinforcement overlap joint of each other in piece district (8) between the adjacent prefab, upper steel bar (10) of ligature superimposed sheet, pour the superposed layer concrete, form the superimposed sheet. The utility model discloses a superimposed sheet dead weight is light, move about freely and quickly two direction rigidity big, be suitable for that the span is big, the transportation and installation of being convenient for. The utility model discloses have fine economic nature and suitability, play promoting effect to the development of building technology.