A cell wiring module has a plurality of connection members connecting adjacent electrode terminals of a plurality of single cells having positive and negative electrode terminals, a plurality of holding portions holding the connection members, voltage detection terminals placed on the connection members and connected to terminal portions of wires, and wire insertion portions through which the wires connected to the voltage detection terminals are inserted. The wires extend from the voltage detection terminals in the direction inclined relative to a direction orthogonal to a connecting direction of the connection members. The wires extending in this direction are inserted through the wire insertion portions.