This study aimed to identify intellectual security and its relationship to psychological security among university students in the Arab Republic of Egypt, as it is assumed that intellectual security affects the degree of feeling of psychological security. It also aimed to reveal the potential impact of the bilateral interaction between intellectual security and national affiliation on the psychological security of university students in Egypt, and to know the percentage of contribution of intellectual security and national affiliation to the psychological security of university students in Egypt. Method and procedures: The researchers used the intellectual security scale, psychological security scale, and national affiliation scale. To achieve the goal of the study, the descriptive, correlational approach was used. The study sample consisted of students from the colleges of (Arts - Specific Education) at Cairo University, and its number was (141) male and female students, from the third and fourth academic years (where a number of students were excluded due to lack of seriousness in applying the test). With an average age of (20-21 years) and a standard deviation of (9.12). Pearson correlation coefficient, multiple regression analysis, and multiple regression equation coefficients were used. The results indicated that intellectual security and national belonging are significant predictors of