The utility model provides an assemble integral quadrature inclined space steel grid box structure which in steel empty stomach net superstructure and the steel grid formula frame, the grid structure is all pressed strip grid cell [bin] and is divided, presses strip grid cell [bin] division back, and the unloading shapes in the workshop, and all in factory workshop processing, remote transportation does not receive the hindrance of charge station's door opening width, goes everywhere without any hindrance here to transport to the job site to, installs at the scene to form wholly, reaches the industrialization requirement of prefabricated assembly, the utility model discloses a multilayer (2 layers~4 layers) large -span (18m~36m), (i) (i) (i) (i) (i) (i) (i) (i) ratio is greater than the good structure system of 1.5 rectangle plane building to y to L to x to L to the long limit of superstructure, is convenient for transport, can avoid on -the -spot secondary to assemble with the span.