The present invention relates to a system and method for managing a trade of real estate using a computer telephony integration (CTI) communication network. The method for managing a trade of real estate using the CTI communication network simplifies the trade of real estate and the arrangement of real estate agents in a university town in which lease trades are frequently made by using the CTI communication which relays a computer and a telephone in an integrated way, thereby activating trades of real estate. In addition, the method complimentarily mediates real estate to a lessee and imposes a commission lower than or equal to the current legal commission to the lessee, thereby reducing the financial burden of lessees.(322) Selection unit(324) Decoding unit(326) Camera control unit(330) Third storage unit(340) Third display unit(AA) Start(BB) End(S510) Construct a homepage(S512) Receive lessor information and selling information(S514) Connection of lessor terminal(S516) Is it the first?(S518) Is it a voice?(S520) Receive desired selling information and hirer information(S521) Develop a web page and receive information(S522) Request call signals(S524) Is it connected?(S525a) Record a non-connection signal(S525b) Notify record message(S525c) Call back(S526) Automatically guide real-estate selling information(S528) Receive input information and contract information(S530) Store, receive, send contract contents(S532) Monitoring and statistics processesCOPYRIGHT KIPO 2015