Trust in the institutions and organizations of the country is the biggest social capital of the Islamic Republic of Iran. A change in the level of confidence leads to positive social and political consequences or corresponding crises and disasters. Social science scientists have considered several factors related to institutional trust, one of which is the media. this research wants to answer the question that what effect do foreign media that are against the Islamic Republic have on the level of Iranians' trust in the country's official organizations and offices? For this purpose, the hypothesis was investigated that Iranians associated with foreign media have less institutional trust compared to Iranians who use domestic media.

The research method in this research is survey type. Researchers have used questionnaires to collect data and Cronbach's alpha to measure the reliability of research tools. The statistical population is the students of East Azerbaijan universities in the academic year (1402-1403) and the statistical sample consists of 384 students who were selected by two methods of cluster sampling and proportional classification using Cochran's formula.

The findings show that foreign mass media are used by students much more than Iranian media so much so that 90% of students use foreign social networks And finally, data analysis and comparison of averages show that students' trust in the country's official organizations has a negative correlation with the use of foreign media and a positive correlation with the use of domestic media.