A method for electroplating a fastener chain having rows of metal elements, the method comprising: A) a first electroplating step, the first plating step comprising causing the fastener chain to pass through one or more first insulating container(s) while bringing each metal element into contact with a plating solution in a plating bath, the first insulating container(s) flowably accommodating a plurality of conductive media in electrical contact with a negative electrode, wherein, during the fastener chain passing through the first insulating container(s), power is supplied by mainly bringing a surface of each metal element exposed on a first main surface side of the fastener chain into contact with the conductive media in the first insulating container(s); and a first positive electrode is disposed at a positional relationship so as to face a surface of each metal element exposed on a second main surface side of the fastener chain; and B) a second electroplating step, the second electroplating step comprising, after the first electroplating step, causing the fastener chain to pass through one or more second insulating container(s) while bringing each metal element into contact with a plating solution in a plating bath, the second insulating container(s) flowably accommodating a plurality of conductive media in electrical contact with a negative electrode, wherein, during the fastener chain passing through the second insulating container(s), power is supplied by mainly bringing the surface of each metal element exposed on the second main surface side of the fastener chain into contact with the conductive media in the second insulating container(s); and a second positive electrode is disposed at a positional relationship so as to face the surface of each metal element exposed on the first main surface side of the fastener chain; and the supplying of power to the surface of each metal element exposed on the second main surface side of the fastener chain in the second electroplating step is started within 30 seconds after the surface of each metal element exposed on the first main surface side is initially contacted with the plating solution in the first electroplating step. A) a first electroplating step, the first plating step comprising causing the fastener chain to pass through one or more first insulating container(s) while bringing each metal element into contact with a plating solution in a plating bath, the first insulating container(s) flowably accommodating a plurality of conductive media in electrical contact with a negative electrode, wherein, during the fastener chain passing through the first insulating container(s), power is supplied by mainly bringing a surface of each metal element exposed on a first main surface side of the fastener chain into contact with the conductive media in the first insulating container(s); and a first positive electrode is disposed at a positional relationship so as to face a surface of each metal element exposed on a second main surface side of the fastener chain; and wherein, during the fastener chain passing through the first insulating container(s), power is supplied by mainly bringing a surface of each metal element exposed on a first main surface side of the fastener chain into contact with the conductive media in the first insulating container(s); and a first positive electrode is disposed at a positional relationship so as to face a surface of each metal element exposed on a second main surface side of the fastener chain; and B) a second electroplating step, the second electroplating step comprising, after the first electroplating step, causing the fastener chain to pass through one or more second insulating container(s) while bringing each metal element into contact with a plating solution in a plating bath, the second insulating container(s) flowably accommodating a plurality of conductive media in electrical contact with a negative electrode, wherein, during the fastener chain passing through the second insulating container(s), power is supplied by mainly bringing the surface of each metal element exposed on the second main surface side of the fastener chain into contact with the conductive media in the second insulating container(s); and a second positive electrode is disposed at a positional relationship so as to face the surface of each metal element exposed on the first main surface side of the fastener chain; and the supplying of power to the surface of each metal element exposed on the second main surface side of the fastener chain in the second electroplating step is started within 30 seconds after the surface of each metal element exposed on the first main surface side is initially contacted with the plating solution in the first electroplating step. wherein, during the fastener chain passing through the second insulating container(s), power is supplied by mainly bringing the surface of each metal element exposed on the second main surface side of the fastener chain into contact with the conductive media in the second insulating container(s); and a second positive electrode is disposed at a positional relationship so as to face the surface of each metal element exposed on the first main surface side of the fastener chain; and the supplying of power to the surface of each metal element exposed on the second main surface side of the fastener chain in the second electroplating step is started within 30 seconds after the surface of each metal element exposed on the first main surface side is initially contacted with the plating solution in the first electroplating step.