PROBLEM TO BE SOLVED : To provide a real estate information management system and a program capable of easily registering or deleting real estate information in or from the management server of a real estate search site, and quickly updating the carriage content of a real estate search site.SOLUTION : The real estate information management system includes : execution program generation parts 32a to 32c for, in response to a request command to register or delete real estate information stored in a real estate information storage part 22a in or from a management server 5 of a predetermined real estate search site, generating an execution program for registering or deleting the real estate information on a Web page for management of the predetermined real estate search site; and a processing execution part 24c for, on the basis of the execution program generated by the execution program generation parts 32a to 32c, performing access to the management server 5 of the predetermined real estate search site on the basis of access information stored in an access information storage part 22b, and for reading the Web page for management from the management server 5, and for executing the registration or deletion processing of the real estate information on the Web page for management.