To overcome problems such that work has to be executed outside a bridge because bolt connection is used for many parts during assembly, such that a cost is increased due to the installation of a guard fence and scaffolding, and such that a worker does not like the work on account of being sometimes exposed to risk.
A steel wall balustrade comprises: a front face plate whose upper end side is formed with a top plate or a top plate retainer, elongated in the direction of a rear face plate; and the rear face plate in which a front receiving plate of the front face plate is integrated with the side of a front face, which is raised on the side of a rear face of a floor slab fixing plate, and whose upper end side is formed with a top plate or a top plate retainer, elongated in the direction of the front face plate. The top plate or the top plate retainer of the front face plate and the top plate retainer or the top plate of the rear face plate are superposed on each other to be assembled; and the front face plate is assembled to the front receiving plate.