PURPOSE : A real estate transaction method using a virtual map in an Internet game is provided to perform the real transaction for the real estate corresponding to a requested virtual real estate. CONSTITUTION : A game providing unit provides an Internet game to user personal computers connected through the Internet(S510). A user applies a real estate transaction through a user personal computer on a virtual map(S520). A transaction management unit processes the conclusion of a virtual transaction for a requested virtual real estate(S530), and provides an agency service for a procedure required for the real transaction conclusion(S540).