The present invention provides the identification codes to the plurality of smell information and databases them, making it possible to identify the information on each smell and adds the smell data and smell reproducing information for at least one smell to the media data, making it possible to provide the contents with the plurality of smell reproducing information. Further, the smell diffusing apparatus includes the plurality of smell diffusing components to combine at least two smell diffusing components corresponding to the smell data and discharge them to the outside such that it can reproduce complex smells, thereby making it possible to effectively process a plurality of smell information.