Portal service providing system using location based grouping service and method therefor

A method and a system for providing a portal service using location based grouping services is provided to offer accurate contents and optimized information between a terminal device corresponding to a specified condition and a user terminal device, and to enable communication and sharing of bidirectional and active information. A client unit(10) comprises a plurality of WIBRO(Wireless Broadband) terminal devices. An LBS(Location Based Service) server(11) provides a location based service. A DB(120) stores user information including distance, a specified condition and terminal device data. A grouping service server(12) provides grouping services. A contents providing server(13) provides portal services. The plural WIBRO terminal devices(100) transmit specified conditions for match making and server login to the DB. And the WIBRO terminal device executes various kinds of contents provided by the content providing server.