To change the rotation speed of a nozzle at the time of being turned to the position corresponding to the degree of dirtiness with respect to the washing device of a bathtub.

This washing device is provided with at least one detergent jetting nozzle part 10 and a water jetting nozzle part 11 formed on the wall surface of a bathroom 3 and arranged so as to wash the bathtub or a washing place. The respective jetting nozzle parts are provided with a rotatable tip part, the rotary shaft of the tip part is driven by a stepping motor 12 provided with a positioning means, the rotation start and end positions of the tip part are respectively turned to be the same each time and thus, stoppage at the angle of the nozzle of an arbitrarily specified position is made possible. Thus, the position of starting washing is determined and it is made possible to decide a specified position, lower the rotation speed there and apply detergent in concentration.