The utility model relates to a bus-bar module structural part (1). Anodes (7) and cathodes (9) of a plurality of batteries (5) are alternately configured, and any group of adjacent anode and cathode in a battery aggregate (3) connected in series with the anodes and cathodes of adjacent batteries can be connected and disconnected by virtue of a service plug (71); the Busbar module structural part is provided with a plurality of first conductors (15) respectively connected between the adjacent anode and cathode of the battery aggregate (3), second conductors (21a, 21b) respectively connected with the main anode (17) and the main canoed (19) of the battery aggregate, third conductors (23a, 23b) connected with each other by virtue of the service plug and respectively connected with the group of adjacent anode and cathode, resin plates (27, 27a, 27b) formed by matching accommodating parts (45, 47a, 47b, 49a, 49b) for respectively accommodating the conductors with the the electrodes and divided along the space between any group of adjacent accommodating parts. The divided resin plates can be connected with each other.