The present invention relates to an online system for providing real estate information and avoiding false listing. According to an embodiment of the present invention, the online system for providing the real estate information and avoiding the false listing comprises : a realtor terminal configured to be used by a realtor, receive an input of real estate information including the owner information on the owner of real estate for dealing and the condition information on the real estate and the dealing information including an address, a dealing type, and a dealing price of the real estate, and transmit and register the received real estate information and dealing information to a real estate brokering server; a real estate verification terminal configured to be used by a real estate specialist who verifies the false listing, receives the real estate information and the dealing information on the real estate for dealing from the real estate brokering server, receives an input of the false listing verification information on the real estate for dealing, and transmits the received false listing verification information to the real estate brokering server; a real estate brokering server configured to receive the real estate information and the dealing information on the real estate for dealing from the realtor terminal, transmit the received real estate information and dealing information to the real estate verification terminal, receive the false listing verification information from the real estate verification terminal, generate a real estate brokering online screen for displaying the real estate information, the dealing information, and the false listing verification information for the respective real estate holdings for dealing, and provide the generated real estate brokering online screen to a customer terminal; and a wired/wireless communication network configured to provide the wired/wireless communications between the realtor terminal, the real estate verification terminal, the customer terminal, and the real estate brokering server.(100) Realtor terminal(200) Real estate verification terminal(300) Real estate brokering server(400) Customer terminalCOPYRIGHT KIPO 2018