A bundle-type interconnector is used in a fuel cell. In one embodiment, a bundle-type interconnector includes an interconnector and a plurality of projections. A plurality of accommodating grooves are formed in the interconnector, and the interconnector has conductive connection members that electrically connect the interiors of the accommodating grooves. Each of the projections is inserted into the accommodating groove, and a conductive material is coated on an outer surface of each of the projections. Accordingly, a cell bundle can be configured regardless of opened and closed interconnectors and the connection structure thereof, and maintenance and repair can be easily performed during the operation of the fuel cell.