To provide a body composition measuring apparatus capable of reducing influence of irregularity of the quantity of moisture on the measurement of bioelectric impedance.

The body composition measuring apparatus 1 includes electrode parts 41-48 to be brought into contact with a hand or foot of a user in measuring the body composition, and an impedance computing part for measuring the bioelectric impedance of the user by distributing electric currents to the electrode parts 41-48. The body composition measuring apparatus 1 executes the control for adjusting the quantity of moisture between the electrode parts 41-48 and the hand or foot of the user in contact with the electrode parts 41-48.