With purpose of determining tendency difference towards national identity based on belonging to ethnic minorities, the research tries to answer following question: is national identity tends to be based on different ethnic groups? The research is a descriptive – survey research. Statistical population consists of all students studying in Azad and State Universities in center of Golestan Province. According to the latest statistics, their number was 83110 persons. Cochran formula was used to determine sample volume. After removing incomplete questionnaire, obtained data from 430 participants were analyzed. Under – studied statistical sample was selected using random stratified sampling method. Needed data was collected using researcher – made questionnaire. Validity of tools was measured using nominal validity method and its reliability was calculated using Cronbach' Alpha which consist of 785/0respectively. Data analysis was conducted in two inferential and descriptive levels. The results indicate that behavioral dimension of national identity in students is higher than other dimensions (cognitive and emotional dimensions), but average indicator indicate that totally students' tendency towards national identity is in high level (4.118 of 5). Comparing ethnic groups in terms of tendency to national identity indicated that there is not a significant difference between ethnic groups in terms of tendency to national identity. Trivial differences show that Kurdish students have the maximum tendency, while Lor students have the minimum one, after Kurds, Turks and Turkmen. Persians are ranked in fifth rating and Sistani's are placed close to Persians as a lingual group. Ranking students' tendency in terms of study field indicated that there is a significant difference in this regard, so that the student studying in the fields of technical and engineering and then basic sciences have the maximum tendency, while the students in the fields of medical sciences and agricultural sciences are placed in last ratings.