The utility model discloses a building outer wall and exterior window liquid distribution belongs to construction technical field, solves current outer wall water pouring test device installation complicacy, awkward problem, including water supply hose, standpipe and shower, the shower be two and evenly is provided with the level pipe that sprays the hole, and two level pipes are continuous through the tee bend level, and the symmetry is provided with the upper strut seat on two showers, the standpipe of the vertical setting of another interface connection of three -way is provided with the lower part supporting seat on the standpipe, the device still includes the support, and the support includes supporting main rod and supporting legs, and the level pipe is fixed in through the upper strut seat in supporting main rod's upper end, and the lower extreme is fixed in the standpipe through the lower part supporting seat, and the last fastening bolt of passing through of supporting main rod articulates the rotation direction perpendicular to of the one end of erection bracing foot, supporting legs the shower with the plane that the standpipe formed. The utility model discloses simple structure makes convenient to use, can hand to spray in short -term, also can hang to spray for a long time.