The utility model discloses a
house building construction prefabricated
floor slab high-strength supporting device which comprises a fixing base, a combination groove is formed in the fixing base, an opening groove is formed in one side of the combination groove, positioning holes are formed in the two sides of the opening groove, a positioning block is installed in the combination groove in a sliding mode, and the positioning block is connected with the fixing base. Alignment holes are formed in the two sides of the positioning block, positioning screws are installed in the alignment holes in a threaded mode, one end of each positioning screw is rotatably installed in the corresponding positioning hole, a supporting column is fixedly welded to the upper surface of the positioning block, and an adjusting threaded hole is formed in the supporting column; an adjusting
threaded rod is installed in the adjusting threaded hole in a threaded mode, one end of the adjusting
threaded rod is fixedly connected with a supporting plate, a mounting hole is formed in the surface of the supporting plate, meanwhile, a gap is reduced through a connecting base plate, a locking screw is combined with a semicircular ring, locking can be assisted for reinforcement, and height adjustment for mounting and supporting is facilitated. The method is convenient, efficient, safe and stable.