A method for communication of multimedia data using virtual world interface in a mobile personal computers is disclosed. The method comprises logging in to the server; displaying an initial menu picture on a screen of the mobile personal computer, the initial menu picture including a plurality of menu items for transmission or retrieval of the multimedia data; and performing a subroutine associated with a selected one of the menu items in the initial menu picture to transmit or retrieve the multimedia data. According to this invention, information can rapidly and accurately be exchanged at any time or place. Further, desired media data can conveniently be transmitted or retrieved by merely a clicking operation of a stylus pen or a drag operation of a mouse without executing a multiplicity of individual programs for transmission and/or retrieval of different media data.