The purpose of this study was to Design model Interaction Operational selective dissemination of information(SDI) in academic libraries. This research is purpose-oriented, applied, and methodically-oriented. The statistical population of this study included all MSc students, Ph.D. students and faculty members of Tarbiat Modares University in Tehran. According to the statistics available on the site of the university, the faculty members of the university were 730 faculty members, 3000 students Ph.D., and 4000 students MSc. Using the Cochran formula, the number of faculty members was 253, 340 were Ph.D., and the MSc students 350 were selected. The data gathering tool was a questionnaire whose validity was confirmed by the experts of information science and science. For data analysis, 16Spss software and single sample T-test were used.In this study, the identification and categorization of information-based dissemination services were first determined, then the number of 43 services identified in 7 characteristics included:knowledge repository(7), feedback (7), Two-way communication(5), education (4), Search (7), Orders (7), and Knowledge Management (6). The average score obtained for most of the characteristics of the selective dissemination system model was above the score of 4.Using this model, the selective dissemination system intelligently recognizes the information needs of member users. It is possible to support a wide range of information, two-way communication, orders, knowledge management, and instant messaging as one of the features of this model.