The utility model relates to an assembly type steel structure building structure, in particular to an assembly type steel structure building structure free of concrete pouring, and belongs to the technical field of building structure design. The utility model discloses an assembly type steel structure pouring-free concrete building structure. The building structure comprises a plurality of prefabricated steel column foundations vertically arranged on a hard foundation; the stand columns are fixed to the prefabricated steel column foundation; prefabricating an external wall panel; prefabricating roof panels; an inner wall plate is prefabricated; elevator room. The utility model has the advantages that: 1, in the construction process, as the system is produced in a full factory and assembledin a cast-in-place manner, the construction progress is greatly improved, and the environmental pollution and noise are reduced; 2, the advantages of compression resistance, shearing resistance, torsion resistance, durability and the like of the steel are exerted, the service life is prolonged by 5-10 times compared with a concrete structure, and meanwhile, the natural disaster resistance is alsoimproved due to high strength of a steel structure system; and 3, the method is suitable for all construction projects such as various house buildings, civil engineering, municipal engineering, airport construction, island construction and water conservancy projects.