An inclination plate type of precipitation tub is provided to stack wave-shaped inclination plates instead of manufacturing unit grid type of inclination plates separately and simply exchange the inclination plates in the case of pollution or damage. An inclination plate type of precipitation tub includes inclination pipes formed by stacking wave-shaped inclination plates(10) in sequence, wherein ridge and valley portions(10-b,10-a) of each of the inclination pipes are positioned facing each other, thereby forming the inclination pipes with pores.
