A thing cooperation service system and method, and a modeling tool thereof are provided. The thing cooperation service system includes a storage manager configured to store and manage a thing control specification with respect to a plurality of things; and a modeling tool configured to provide the user with a thing which is in a specific social relationship with a user in the plurality of things using information of the user and the thing control specification, and generate an application providing a thing cooperation service using a thing selected from things which are in the specific social relationship.