The present invention relates to an intracellular viral vector delivery method employing an iron ion/viral vector composite. The iron ion/viral vector composite according to the present invention is not dependent on the expression of CAR and so improves the efficiency of delivery of viral vectors and gene expression in cells of diverse types, and has an outstanding virus-neutralizing antibody escape performance, exhibits little cytotoxicity and is outstandingly stable even when subjected to iron ion processing at low concentration, and hence can be used to advantage in recombinant viral vaccine compositions.
