The public relations of the staff in industries are an important part of an industry''s inner public relations. To fore-control the problems arising in the relations, a scientific forewarning management system of the public relations is needed. The article selects 24indexes to establish a system, in which the indexes are converted into 10primary factors. Based on the primary factors, an index model is established, according to which, the strategies of public relations to smooth the relations of the staff in industries are analyzed.