To perform a planta massage which is effective to suppress obesity, and a measurement of a body weight and body fat which are barometers for obesity, by a single device.

To a body weight measuring base 1, electrode handles H, H which should conductively come into contact with right and left hands, and electrode belts B, B which should conductively come into contact with right and left feet, are connected through a connector C and a cable 2, and in addition, a power source plug is connected through a power source cord. The body weight measuring base 1 contains a pulse power source 11 and a human body impedance measuring circuit 12, and on the upper surface, an operation panel P and a pair of right and left electrode foot mats F, F are arranged. In this case, the electrode handles H, H are constituted in such a manner that on a side surface of a bar body having insulating property, a power feed side electrode H1 and a detection side electrode H2, which have a width being slightly wider than a palm, are wound in the longitudinal direction while providing a gap, and a four terminal electrode is constituted of these power feed side electrodes H1, H1 and the detection side electrodes H2, H2.