The utility model relates to an installation-free type steel structure framework integral elevator, which comprises a lift cage and a counterweight, and is characterized by also sequentially comprising a base, a bottom layer framework, a plurality of middle layer frameworks, a top layer framework and a top cover from bottom to top, wherein the base, the bottom layer framework, the middle layer frameworks, the top layer framework and the top cover are in overlapped installation for forming a steel structure hoistway, a dragging system for ascending and descending the lift cage in the steel structure hoistway is arranged in the top layer framework, guide systems and door systems are respectively arranged in the bottom layer framework, the middle layer frameworks and the top layer framework, the guide systems are used for controlling the lift cage and the counterweight to only do ascending and descending movement along guide rails, and the door systems seal inlets of each layer station. The installation-free type steel structure framework integral elevator has the advantages that the structure is compact, safety and reliability are realized, the appearance is attractive and novel, and the like. The elevator is suitable for being additionally installed in built multi-story buildings, the installation of parts on each framework is not needed in site in the elevator hoisting site, and the in-site construction time and the labor cost are favorably reduced.