A body composition measuring apparatus is a body composition measuring apparatus which comprises: at least a pair of current passing electrodes for passing a current between two body parts of a user, at least a pair of voltage measuring electrodes for measuring a potential difference between the two body parts, and a main unit having a surface on which these electrodes are disposed such that they are insulated from each other, wherein the electrodes are disposed on the surface of the main unit such that each of the current passing electrodes makes contact with a body at multiple points sandwiching a contact point between the voltage measuring electrode and the body and each of the voltage measuring electrodes makes contact with the body at multiple points sandwiching a contact point between the current passing electrode and the body.