An apparatus for controlling a multimedia message in a user equipment of a wireless communication system and method thereof are disclosed. The present invention includes a touchscreen configured to display at least one first region corresponding to each message exchange unit and a second region for displaying an information of a content exchanged via the first region and a controller, if the information of the content displayed on the second region is selected, controlling the selected content information to be displayed on the at least one first region. In this case, the message exchange unit includes a group comprising at least two message exchange targets which are identified by at least one identification information.