PROBLEM TO BE SOLVED: To provide a bath apparatus capable of saving hot water and time when a user enters or leaves a bathtub, while avoiding upsizing of the bath apparatus.SOLUTION: A bath apparatus comprises: a wheelchair 2 a bathtub 1 comprising a door 11 for opening and closing an opening 10b for receiving the wheelchair 2 a driving part 15 for adjusting the height of the seat 221 of the wheelchair 2 and a processor 16 which, when the wheelchair 2 received into the bathtub 1 through the opening 10b is provided in a predetermined position, performs processing to adjust the height of the seat 221 by using the driving part 15.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】入浴装置の大型化を避けつつ、入出浴時における湯や時間の節約が可能な入浴装置を提供する。【解決手段】入浴装置は、車椅子2と、車椅子2を受け入れる開口部10bを開閉する扉11を有する浴槽1と、車椅子2の座部221の高さ調整を行うための駆動部15と、開口部10bから浴槽1に受け入れられた車椅子2が所定位置に配置された場合に、駆動部15を用いた座部221の高さ調整を可能とする処理を行う処理部16と、を備える。【選択図】図4