The utility model relates to a fuse box containing busbar and PCB stacked structure belongs to zero technical field in the car electrical apparatus. The housing comprises an upper housing and a lower housin, it is equipped with the easy detaching assembly who contains a plurality of fuses to go up shell top face, it is last to being equipped with PCB, insulating barrier, multi -disc busbar down in proper order with the internal follow of inferior valve to go up the casing, the interval is supported and is set up about PCB, the insulating barrier, the multi -disc busbar is fixed on insulating barrier. The utility model discloses the multi -disc busbar is fixed on insulating barrier, about forming with the PCB return circuit the great dilatation of stacked structure the current -carrying ability of fuse box internal circuitry, reduced the current capacity on the PCB simultaneously, reduced PCB's the design degree of difficulty.