To provide a private parts washing device which facilitates refilling of washing fluid, facilitates cleaning of a cover, and enhances the watertightness of the interior of the device and of a housing portion of a refill container.

The private parts washing device has a washing fluid holding portion 5, a washing fluid injecting port 6, and a washing fluid feed channel 7. The holding portion 5 holds therein the washing fluid such as detergent. The washing fluid injecting port 6 is arranged at an intermediate portion of a feedwater channel 4 which extends from a feedwater port to a washing nozzle for spouting washing water to the human private parts, for injecting the washing fluid from the washing fluid holding portion 5. The washing fluid feed channel 7 connects the washing fluid holding portion 5 to the washing fluid injecting port 6. According to the structure of the device, the refill container is employed as the washing fluid holding portion 5, and a main body A of the private parts washing device has the housing portion 8 for the refill container 30. Further, the housing portion 8 has an opening 9 formed in an upper surface thereof, for loading/unloading the refill container 30, and a detachable cover 10 is attached to the opening 9.