Examining the process of Iran's international scientific cooperation in the last 50 years

study and analyze the situation of scientific diplomacy in Iran in the last half century and to compare the pattern of cooperation of the authors of articles based on the citation index of Web Science during the years 1975 to 2022.This research is of applied scientometric type. The research population included all joint scientific products of Iran in the international web-based citation database with foreign countries during the years 1975 to 2022. The pattern of joint Iranian scientific productions has been studied and analyzed during this period.International scientific products of Iran during the years 1975-2022 were examined and analyzed in the WOS International Index. The findings show that over the past half century, the United States, Canada, the United Kingdom, Australia, Germany and China have been at the forefront of Iranian scientific diplomacy. Iran ranks 21st in the world in scientific diplomacy in 2017, which in 3021 has reached 30th.The research findings also showed that most of Iran's scientific productions were in the form of scientific papers and then conference papers. Papers presented at international conferences are a clear symbol of scientific diplomacy. Accordingly, 56,190 papers presented at international scientific conferences were indexed on the website of the Science, which accounted for about 8.5% of Iran's scientific production in the last half century (the total number of Iranian scientific production was 676690). The growth trend of papers presented in international scientific conferences in the last ten years showed that the most scientific papers of international conferences in 2015 (3959 papers and 7.04% of the total papers presented), 2014 (3714 papers and 6.6%, respectively). Total articles submitted) and 2017 (3334 articles with 5.6% of total articles) and the lowest number of articles in 2022 (3 articles with 0.005% of total articles), 2021 (631 articles and 1.12% of total articles) And 2020 (1750 papers and 3.11% of all papers submitted) presented at international conferences indexed by WOS.From 2019 to 2022, when the world was infected with the COVID -19 virus and its various strains such as Delta and Omicron, etc., we saw the least international participation in the field of international conferences. This influenced scientific diplomacy, which seems natural