PROBLEM TO BE SOLVED : To construct a Web site enabling the processing a matching between a seller and a buyer with worry-free among persons concerned. SOLUTION : A support apparatus for trade of real estate comprises a storage means 2 for general property information storing general information on properties for sale, a storage means 3 for detailed property information storing detailed information on the properties for sale, a browsing acceptance means 4 to accept browsing for the general information via an electric communication line, a storage means 5 for preliminary information stored preliminary information on persons desiring to browse and a browsing allowing means 6 to allow persons whose preliminary information is stored in the storage means 5 to browse the detailed information within a fixed range based on the preliminary information when requested for browsing of the detailed information.