The concept of social capital is a strategic concept that refers to the connections in human community. This research aimed to investigate the relationship between national identity and social capital of college students with an approach to the vision document of the future Iran. Using quantitative approach, survey method and structured questionnaire, Sample population was 360 college students of the faculties of humanities at Shiraz University in 2023-2024 semester which were selected using a random cluster sampling method. Face validity and Cronbach's alpha coefficient were used, for evaluation of validity and reliability of questionnaire, respectively. The findings showed that the mean of social capital was lower than the expected average and their mean of national identity was higher than the expected mean. There was a positive and significant relationship between national identity and social capital. There was a significant difference between social capital according to field of study. Students in fields related to social interaction and behavior (educational sciences) had more social capital. There was no significant difference between social capital according to gender and ethnicity. Multiple regression showed that the independent variables were able to explain nearly 15% of the changes in the dependent variable.