PROBLEM TO BE SOLVED: To provide a biological battery treatment tool that provides a good skin contact feeling and can produce an excellent current stimulation effect.SOLUTION: A biological battery treatment tool comprises: members that are made of at least two kinds of materials having different ionization tendencies and a member that has conductivity and forms neither an anode nor a cathode of a battery. Out of the members made of the materials having different ionization tendencies, a first member 12 having a relatively large ionization tendency and a second member 14 having a relatively small ionization tendency are arranged with a member 16 intervening therebetween which is made of a material having conductivity and having no ionization tendencies, and are arranged so that a current flows between the first member 12 and the second member 14 through the skin when the first member 12 and the second member 14 respectively come into contact with the skin.
