Using the policy of "unity hence multiplicity", the promotion of national identity in order to have unity and collective integration and protecting ethnic identities is proving to be true. This study deals with the sociology of the relation of national identity and ethnic identity among Kurdish students, focusing on scientific and accurate response to the following questions:
A: How much is the rate of the bond of national identity and ethnic identity?
B: What is the relationship between national identity and ethnic identity?
The findings of this study reveals that Kurdish students show great bond to the all categories of their national identity and ethnic identity; however, they show paucity of bond to the government categories and this arises from the existence of significant inequality which they think the government is responsible for it. It also reveals that in spite of some of the theories, there is no reciprocal relation between national identity and ethnic identity, but it is a direct and consistent relation. It means that people have multiple identities by which they identify themselves in specific situations. In multivariate analysis, the variable of social inequality has a critical importance which specified the highest level of explanation and prediction of the national and ethnic identity.