Dealing in real estate disclosure is an information providing system and method is. Online the present invention according to the online method for providing information of real estate for providing information of real estate web site a server that provides, wire/wireless server connected via communication means to establish at least one seller terminal, buyer terminal, including online user terminal and relay LSR in MPLS network for providing information of real estate as method transaction information of real estate, seller terminal and buyer terminal number information and selling through the website by entering the information, respectively, information number information and selling server by combining a scanning process is performed to scan the customer clicks a " probability information is displayed in the web site, said terminal broker probabilistic information displayed based on interest retrieves information, bid to interest information including bidding request information, during the predetermined time period that is predetermined in server device after a lapse, input the bid from analyzes data it requested lottery courses with separate bid according to predetermined criteria determining a broker, server of the customer clicks of interest information bid auction as dormitory deposit that require payment intermediary and settlement server and expires within a predetermined time period is the system is moved to the, in association with information that interest number information and selling said auction information includes the item and providing that broker. Therefore, according to the above-mentioned the present invention, providing information mediating seller and buyer oxydation and scorching, respectively polyetherpolyol and the trading an end number information and selling of the Internet server informs, enables the reproducible production of unusually probability of reasonable by including a display under transaction trading the air discharge is leading to formation at proper price in of the real estate of can be, of the weld can be made for dealing with real estate rapid..