This bioelectrode is provided with: a fitting member (1106) which is composed of an electrically insulating member affixed to a surface of a garment (1100), said surface being in contact with a living organism (1000); an electrode part (1101a) which is composed of a conductive member affixed to a surface of the fitting member (1106), said surface being in contact with the living organism (1000); a connector (1102a) for connection to a bioelectrical signal measurement device, said connector (1102a) being affixed to the fitting member (1106); a wiring line (1103a) which is affixed to the fitting member (1106) and electrically connects the connector (1102a) and the electrode part (1101a) to each other; and an electrically insulating insulation member (1105) which covers a portion of the surface of the wiring line (1103a), said portion being in contact with the living organism (1000).