A manufacturing method for a laminated rotor includes inserting a bridge member into a magnetic flux leakage suppression hole, thus allowing a tip of the bridge member to project from an end surface of the laminated steel sheet, and bringing a die surface of a die member into pressure contact with an end surface of the laminated steel sheet and filling a molten resin into a gap between a magnet hole and a magnet body in a state where an opening of the magnet hole is closed. A length of the bridge member is larger than a thickness of the laminated steel sheet. The die member includes a housing portion. The housing portion houses the tip of the bridge member projecting from an end surface of the laminated steel sheet.