In a detection module to be mounted on a unit cell group formed by electrically connecting adjacent electrode terminals of a plurality of unit cells including positive and negative electrode terminals by busbars, a plurality of fuse units each configured such that a busbar connection terminal for detecting a state of the unit cell by being connected to the busbar, a wire connection terminal to be connected to an end part of a wire and a fuse for connecting the busbar connection terminal and the wire connection terminal are integrally assembled and accommodated in a housing made of synthetic resin are held in a holding member made of synthetic resin.