The present invention relates to a real-time real estate information providing system for providing various types of real estate information registered by a seller or a buyer in real-time. Particularly, according to a real-time real estate information providing system, the system of the present invention includes : a business operator server which sets customer information and real estate sale condition of a purchase client, and, when real estate search as to a purchaser is requested through a specific real estate agency, corrects information of a real estate for sale registered by other agency, not the real estate for sale registered by the agency having requested the search, as information of the agency having requested the search among real estates for sale suitable for the search condition, and then provides the information for a terminal of the purchaser; a real estate agency terminal which requests to search a real estate for sale by accessing the business operator server according to the request of the purchaser; and a user terminal which requests a real estate for sale through the agency terminal, and is provided with the information of the real estate for sale suitable for the search condition from the business operator server.(410) Business operator server(411) Position correction module(412) Filtering module(413) Information integration module(414) Sale real estate transmission module(415) Sale real estate transmission alarming module(416) Double data processing module(420) Communications network(430) Agency terminal(440) Reporter terminal(450) Seller terminal(460) Buyer terminalCOPYRIGHT KIPO 2015