The present invention relates to a real estate information displaying method in a real estate brokerage system that opens a real estate address in real estate brokerage and displays the real estate address on a map. According to the present invention, the real estate information displaying method includes the steps of : registering information on real estate requested by a seller or lessor or enabling the seller or lessor to directly register the information on the real estate wherein the information has address information on the real estate; converting the information into coordinate information with latitude and longitude on the basis of the address information of the real estate; transmitting the coordinate information to an open map API; and displaying a detailed location of the real estate on the open map on the basis of the coordinate information.(S100) Registering real estate requested from seller or lessor(S110) Converting registered address information(S120) Transmitting coordinate to open map API(S130) Displaying location of real estate on the open mapCOPYRIGHT KIPO 2018