A method and a mobile communication system for transmitting/receiving a multimedia message using a mobile communication terminal. Summarized data type information representing a kind of each of data types constituting a multimedia message, which is to be received by a network, and data type information summarizing the details of each of the data types are first transmitted to the receiving mobile terminal. This allows a receiving communication terminal to selectively receive data types of a multimedia message according to a selection of the receiving terminal's user.