The utility model provides an integral empty stomach sandwich panel superstructure of large-span assembly, include and connect the rectangular mesh empty stomach steel construction that A distinguished, transitional coupling B distinguishes and the central C of connection district constitutes by supporting, supporting and connecting A position in the edge all around of rectangular mesh empty stomach steel construction, the mid portion that C is located rectangular mesh empty stomach steel construction is connected at the center, and transitional coupling B district connects between A district and the central C of the connection district between supporting, it comprises a plurality of support diesis units to support connection A district, transitional coupling B district comprises a plurality of transition diesis units, the center is connected the C district and is comprised a plurality of central diesis units, it docks the rectangular mesh empty stomach steel construction that constitutes the bilayer jointly to support diesis unit, transition diesis unit and central diesis unit. This empty stomach sandwich panel superstructure is the inside cancelled structure entirely that is not only, and the high non-deformable of structural strength is adapted to the structure requirement of great span simultaneously, has better market perspective.