Abstract: The present invention relates to an apparatus and method for coating carbon nano tubes, which is capable of coating carbon nano tubes on a film at the same time when the carbon nano tubes are produced, unlike a wet method, thereby reducing the number of processes and costs and improving performance. The apparatus and method has an advantage of directly applying a CNT-containing gas obtained by thermal chemical vapor deposition to a film to obtain a CNT coating film with the reduced numbers of processes and high quality through improvement of an electrical property by maintenance of dispersibility and CNT length, as compared to a conventional wet process.