This battery wiring module is provided with a plurality of bus bars, and a flexible wiring board having a plurality of wiring lines connected to the bus bars, respectively. The flexible wiring board has a main body section, and a plurality of extending sections extending from the main body section toward the bus bars, respectively. Each of the extending sections supports one of the wiring lines, and each of the extending sections has an end portion where a pad is disposed, said pad being a part of each of the wiring lines. Each of the bus bars has at least one cutout, and the pad is disposed on each of the bus bars such that the pad overlaps at least a part of at least one cutout. The pad and at least the part of at least the one cutout are connected to each other using a solder.