The invention discloses a retractable fold steel roof structure, comprising H-shaped steel beams, horizontal intersecting supports between beams, fixed nodes on ends of the beams, driving wheels, rolling nodes on the ends of the beams, drive sets, retracted stopping steel plates, a connecting rod, slide rails on end parts of the H-shaped steel beams, slide rails on middle parts of the H-shaped steel beams, rotating rods, steel balls, components for welding H-shaped steel plates, pin shafts, roof supporting components, guide rails and rails for the beams to run. The invention is characterized in that: the retracted stopping steel plates on the rails lock or release a roof; the drive sets drive a beam which is connected with the drive sets to run through the connecting rod, so that a horizontal intersecting support between beams is driven to slide in slide rails, thereby other beams are driven to run along rails at two sides; the retractable folding and unfolding of the horizontal intersecting supports between beams realize the folding and unfolding of the whole roof. The retractable fold steel roof structure has the advantages of reasonable structure, definite force-transfering mechanism, simple design and construction and low cost, and is especially suitable for medium-and-small-sized buildings.