1Assistant Professor of Sociology, Oroumiyeh University, Iran
2Ph.D. Student of Sociology, Payam-e Noor University, Iran
3Ph.D. Student of Sociology, Middle East Technical University, Turkey
Social trust is an important component of social development and modern development that has special significance in social science debate today. One of the main factors of social trust is the trust in organizations that are considered as institutional trust in social researches. This type of trust is analyzed in the present study and it has been tried to determine this kind of trust in the society by using the data from the "fifth wave of the World Values Surveys" in Iran.in fact, the goal is to recognize confidence in institutions in age grouping based on the sociological concept of "race". The findings of the present study show that the mean institutional trust among the people is "average" and erosion process of intergenerational comparisons (but less) can be seen, while there is a significant difference between the institutional trust of first generation (55 years or older) and third generation (15 to 29 years).