Steel slideway for building jacking storey addition

The invention provides a steel slideway for building jacking storey addition. The steel slideway is used on a framework post (1) of a jacking storey addition building, and comprises angle steel (2) in longitudinal arrangement along the four corners of the framework post (1), wherein the adjacent pieces of angle steel (2) are connected through a dismountable batten plate (3). During the building jacking storey addition construction, the cross section of the framework post (1) is maintained in the restriction of the steel slideway, so that the steel slideway can restrain the lateral displacement of the framework post (1); the horizontal displacement generated by the cutting section of the framework (1) due to the wind load effect, the earthquake effect and the error operation in the construction process is limited; and the safety of the structure in the jacking process after the building framework post (1) is cut is ensured.