Objective: The innovation system in Iran is a nascent system that can advance the country on the path of development with less time and cost. Innovation is an interactive learning process between companies and other actors in the innovation system, and this research was conducted with the aim of examining the relationships between actors constituting the national innovation system of Iran based on the rights and duties of these actors.

Method: This research is applied in terms of its purpose and descriptive in terms of the method of data collection. The statistical population of the research included experts in the field of research, including university professors, policymakers and managers related to the field of science and technology parks, entrepreneurs and managers of knowledge-based companies, of which 15 people were selected based on purposive sampling.

Findings: After identifying the actors of the national innovation system of Iran and determining the rights and duties of each of them in this system, using the opinions of experts and the fuzzy Delphi technique, 5 main influential actors were identified and 17 rights and duties were determined for the actors. Then, the causal relationships and connections between these actors were examined using the fuzzy DEMATEL technique. The results showed that familiarity with patent, intellectual property, and technological innovation laws, monitoring the proper implementation of patent, intellectual property, and localization laws, and facilitating knowledge and technology interaction laws and localization support, respectively, have the highest influence among other rights and duties. Also, developing incentive programs for technological innovation, conducting market research, interacting with other colleagues and sales channels, and developing incentive programs for technological innovation, respectively, have the lowest influence among other rights and duties.

Conclusion:The national innovation system becomes desirable when all rights and duties are identified, correctly, and completely implemented.