The present invention refers to realty data of shaping, standardized, thereby improving the, real estate Company block real estate database and a newspaper offline and TV, flea market to an advertising effect of commercial real estate online and offline human network mediation processing device and method relates to performing, features of the present invention, information of real estate of online and offline human network for processing data in device for mediating between, realty transaction data screen real estate for processing means; said screen real estate seller mediated means median agent online realty and an internal database storage management information phosphorus ; , real estate information interactively financial companies and by another factor is checked in real time, update said seller real estate said screen means first optimum interface with the information to the updated database connected to data lines and generates a and said internal interface transmitted to external an optimal. include database. As such. The present invention refers to of the seller in connection with the data generated with a realty data minimum-cost the online/a dB customer handled efficiently because and is capable of sharing realty information, advertisement managing of optimum ISDN marketing management strategy converted into contact point is turned off.