Assembly type box building and standard building modules thereof

The invention discloses an assembly type box building and standard building modules thereof. The assembly type box building comprises multiple standard building modules; every two adjacent standard building modules are connected through longitudinal horizontal connecting pieces; each standard building module comprises a bottom truss girder, wall frame columns and a roof beam, wherein the wall frame columns are horizontally and longitudinally arranged at the two sides of the bottom truss girder, the roof beam is fixedly connected to the upper ends of the wall frame columns, and longitudinal horizontal connecting pieces are fixedly connected to the wall frame columns and the roof beam. The assembly type box building is simple in structure, convenient to assemble and use, the assembly type building is adopted, the prefabrication and field installation mode is adopted, and the construction period is short.