The utility model discloses a novel portable electric power is under construction terracedly, it is including work support and auxiliary stand, two sets of it has the horizontal pole to peg graft between the work support, the horizontal pole includes first horizontal pole and second horizontal pole, first horizontal pole right -hand member and second horizontal pole left end all are equipped with the screw thread, screw sleeve has been cup jointed between first horizontal pole and the second horizontal pole, open work support upper end has the grafting recess, supplementary stent sidewall is equipped with the grafting lug, connecting hooks is installed to the auxiliary stand bottom, fixed couple is installed on the auxiliary stand top. The device simple structure, can very easy realization the installation and the dismantlement of construction ladder, very strong practical value has.