A battery wiring module that allows an operator to easily perform operations. A battery wiring module includes: bus bars and electrical wires, which are to be electrically connected to an on-board secondary battery; a housing that is to be attached to the secondary battery, and includes bus bar housing portions and an electrical wire housing portion that house the bus bars and the electrical wires; and a second lid for closing openings of the bus bar housing portions. Information indicators that indicate operational information (“+”, “−”) are provided on the top and back faces of the second lid.