A hot water bidet is disclosed. According to the present invention, a structure of an operational unit housing is improved to connect a water supply line to a side of a main body of the hot water bidet, and the operational unit housing is rotatably mounted on the main body of the hot water bidet. Accordingly, inconvenience of work for installing the water supply line from behind the hot water bidet and defective work are prevented. Also, user convenience such as easily securing space from rotation of the operational unit housing when cleaning the hot water bidet and a toilet bowl or the like is improved.
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