Provided are a method and an accessory apparatus for receiving and reproducing DMB data. The DMB accessory apparatus receives DMB data, converts data formats of the received DMB data into multimedia data formats which can be reproduced by a typical mobile terminal, and transmits the DMB data converted into the mobile terminal reproducible data formats to the mobile terminal. Accordingly, even a mobile terminal, which does not have a function of receiving and reproducing DMB data, can reproduce the DMB data.