The utility model provides a novel steel limit waterstop mounting structure, waterstop mounting structure does: at structure upstream face mounting structure upstream face owner muscle, at structure back side mounting structure back side owner muscle, construction joint between structure upstream face owner's muscle and structure back side owner muscle department installation opening a few style of calligraphy buckles up, at a few fixed reinforcing bars of style of calligraphy buckles bottom installation lower floors, steel limit waterstop install in in a few style of calligraphy buckles, thelower extreme of steel limit waterstop and the fixed reinforcing bar fixed connection of lower floor, steel limit waterstop upper end fixed connection have a fixed reinforcing bar in upper strata, still be equipped with the reinforcing bar that bears down on one on the fixed reinforcing bar in upper strata. The technical scheme of the utility model the installation error of steel limit waterstop has been reduced to and reduced the concrete and vibrate to the disturbance of steel limit waterstop, improved the waterproof quality of concrete construction seam. Effectively avoided the tradition the to vibrate steel limit waterstop distortion that technology caused, the defect of lodging.