To achieve comfortable bathing such as rubbing the body of a bathing person with little stimulation in a bubble jet bathtub.

Rising parts 8 with spouts 6C and 6D for generating bubble jet streams are disposed at least either in a part near the soles and a part beside the buttocks of the bathing parson on the bottom of the bathtub 1 so that bath water flows toward the shoulder part or above the back of the bathing person from at least either the sole part or beside the buttocks of the bathing person's posture supported by the buttocks.