A battery wiring module that can ensure an insulation distance between an electrode of a secondary battery and a conductive part arranged above the cover portion. A housing includes first and second divided housings that respectively include a bus bar housing portion that houses a bus bar, a first cover portion that is provided in one piece with the first divided housing and covers an opening of the bus bar housing portion of the first divided housing, and a second cover portion that is provided in one piece with the second divided housing and covers an opening of the bus bar housing portion of the second divided housing, the first and second cover portions being adjacent to each other. The first cover portion is provided with a tongue piece that extends from the first cover portion toward the second cover portion and overlaps the second cover portion in the opening direction of the bus bar housing portion.