An information generating device in an information communication system in which contents and catalog information including its attribute information are distributed in node devices, includes: a first storage unit storing first catalog information, the catalog information including link information associating the plurality of attribute information with each other; a acquisition unit acquiring, in response to updating the content of the attribute information, the updated attribute information; a generation unit generating the link information for updating the first catalog information on the basis of the attribute information acquired by the first acquisition unit, and the first catalog information stored in the first storage unit, and generate second catalog information including the generated link information and the updated attribute information; a second storing unit storing the second catalog information; and an updating unit updating the first catalog information on the basis of the second catalog information for each given period.