PURPOSE : A diary for real estate mediating is provided to reduce time required for searching and arranging real estate information by systemically managing the real estate information.CONSTITUTION : A diary(100) for real estate mediating comprises a first recording part(200) for a residence, a second recording part for a business center, a third recording part for a building, a fourth recording part for a land, a fifth recording part for purchase, a paper part(120), and a cover part(150). The first, second, third, fourth, and fifth recording parts are filled with real estate information for a residence, a business center, a building, a land, and purchase, respectively. The paper part has a customer recording part filled with customer information. The cover part covers the outer surface of the paper part.COPYRIGHT KIPO 2012