The present invention relates to a method and a system for providing a real-estate trading service. The method for providing a real-estate trading service of an escrow server in the system for providing a real-estate trading service including an escrow server, a bank server, and a trade server includes : a step of generating first integrated trade management data after confirming authentication of a contractor of a first trade contract when first trade contract information is received from the trade server; a step of changing a trade payment deposited from a buyer of the first trade contract to virtual money; a step of generating second integrated trade management data after confirming the authentication of the contractor of a second trade contract when at least one among the contractors of the first trade contract receives second trade contract information from the trade server; a step of updating a deposit detail of the first integrated trade management data and the deposit detail of the second integrated trade management data when the buyer of the first trade contract requests payment of the virtual money; and a final payment step of transmitting a command in which a whole deposit payment registered in the second integrated trade management data is paid to the buyer of the second trade contract, to the bank server when a real-estate-related report procedure completion signal on the first trade contract and the second trade contract is received from the trade server.(3S12) Updating the first transaction management integrated data and the second transaction management integrated data according to deposit of second payment and balance(AA) Start(B1, B2, B3, B4) End(S301) Receiving first transaction contract information(S302) Authentication of all of parties?(S303) Generating first transaction management integrated data(S304) Deposit is deposited?(S305) Virtual currency conversion(S306) Recording the converted virtual currency to a deposit history of the first transaction management integrated data and generating a security number(S307) Receiving second transaction contract information including at least one of parties of a first transaction contract(S308) Authentication of all of parties?(S309) Generating second transaction management integrated data(S310) Virtual currency payment request of a buyer of the first transaction contract?(S311) Updating a deposit detail of the first integrated trade management data and the deposit detail of the second integrated trade management data(S313) Real estate-related reporting procedure about the first transaction contract is completed?(S314) Calculating virtual currency managed in the first transaction management integrated data(S315) Completing the real estate-related reporting procedure related on the second transaction contract?(S316) Transmitting a command of paying a total deposit amount registered in the second transaction management integrated data to a buyer of the second transaction contract in cash, to a bank serverCOPYRIGHT KIPO 2018