A wiring module that is used in a battery assembly in which a columnar positive electrode and a columnar negative electrode of a plurality of batteries formed in a thin-type rectangular parallelepiped shape are arranged alternately. The wiring module includes a terminal pattern on a surface of an insulating resin substrate connected to the columnar positive electrode and the columnar negative electrode; a voltage detection wiring pattern on the surface connected to the terminal pattern; a fuse pattern on the surface interposed in the voltage detection wiring pattern; and an insulating resin layer that covers a peripheral portion of the terminal pattern, the voltage detection wiring pattern, and the fuse pattern are covered with the insulating resin layer A pair of through-holes, into which the columnar positive electrode and the columnar negative electrode are inserted, is formed in the terminal pattern and the insulating resin substrate.