The utility model discloses a reusable vertical ladder rib for wall steel bar binding. The reusable vertical ladder rib comprises a vertical rod, a plurality of cross rods and a plurality of steel barrow spacing control cross rods, the vertical rod is fixedly connected with a support perpendicular to the vertical rod, and the support is fixedly supported on a poured wall. The transverse rods arevertically and fixedly connected to one side of the vertical rod at equal intervals, and the transverse rods are parallel to one another; the steel bar row spacing control cross rods correspond to thecross rods in a one-to-one mode, the steel bar row spacing control cross rods are fixed to the upper portions of the corresponding cross rods, and the inner steel bars and the outer steel bars of thewall body are located at the two ends of the steel bar row spacing control cross rods respectively and bound to the cross rods. The reusable vertical ladder rib device for wall steel bar binding is simple in structure, convenient to manufacture, cost-saving, fast in construction and high in efficiency, can be used for binding and reusing other walls after being detached, and reduces engineering cost.