Disclosed is a system for adjusting a calculated land value of a boundary real estate, which can guarantee the convenience, efficiency, and reliability of publicly notified individual land price calculating work with respect to a boundary real estate positioned between boundaries of each local government. In order to achieve the purpose, the system for adjusting a calculated land value of a boundary real estate comprises : a plurality of local government servers in which real estate information and calculated land value information of a boundary real estate are stored; a real estate total studying system server which is connected to each of local government servers by a communication network to relay each of the local government server; and a calculated land value verification terminal which connects to the local government servers through the real estate total studying system server to collect a calculated land value with respect to a boundary real estate of a first local government and a calculated land value of a comparison real estate of another local government adjacent to the first local government, and calculates a central value between a calculated land value of a first boundary real estate in the first local government and the calculated land value of the comparison real estate of another local government adjacent to the first local government, in which a calculated land value adjustment program, which adjusts the calculated land value of the first boundary real estate so as to be close to the central value, is installed. According to the present invention, a calculated land value automatically calculated by a land value calculation program can be adjusted by reflecting a calculated land value of an adjacent land located in another local government.(100) Local government server(200) KRAS server(300) Calculated land value verification terminal(AA) Wired/wireless communication networkCOPYRIGHT KIPO 2018