The present invention provides an apparatus for transmitting/receiving information for digital multimedia broadcast (DMB) service and method thereof, by which data required for decoding is transmitted fast and by which the received data is facilitated to be quickly decoded. The present invention includes coding a service information including at least one of a simplified PAT (program association table), a modified PMT (program map table), a modified IOD (initial object descriptor), and an ES (elementary stream) descriptor into a FIC (fast information channel) structure and performing interleaving and error correction on an audio/video signal to code into an MSC (main service channel) structure, multiplexing the FIC-coded service information, the MSC-coded audio/video signal, and data, modulating the multiplexed signal, and converting the modulated signal to an RF (radio frequency) band signal to transmit.