A body massaging apparatus of a circulated water current type to be used for lean figure beauty, comprises bathtub for storing therein water and accomodating therein at least one patient in a state close to a lying attitude with the face upward. The bathtub is formed with an inlet opening for introducing the water into the bathtub and an outlet opening for discharging the water from the bathtub. The inlet opening is positioned to confront the back of the patient's body, while the outlet opening is positioned opposite to the inlet opening. A circulating conduit for circulating the water through the bathub is disposed outside of the bathtub and connects the outlet opening with the inlet opening. A uniform current generator is provided in place in the circulating conduit to generate in the bathtub a uniform water current which flows in one direction from the inlet opening toward the outlet opening and is applied directly to the patient's back substantially in parallel to or at an acute angle to the longitudinal axis of the patient's body.
