The current study aimed at investigating the Ego-identity components and the disparity of these components in relation to the psychological security of adolescents in Egypt. The sample of the study consisted of (400) male and female adolescents. The researchers used two main instruments; the psychological security scale and the Ego-identity scale. Findings of the study revealed that there is a positive relationship between Ego-identity achievement and psychological security. It was also revealed that there is a negative relationship between Ego-identity look and Ego-identity dispersion on the one hand and psychological security on the other. Results also showed that there are statistically significant differences in the mean scores between adolescents with high and low Ego-identity in their psychological security in favor of adolescents with high Ego-identity. In addition, it was shown that there are statistically significant differences between low and high Ego-identity dispersion in psychological security in favor of low Ego-identity dispersion. Finally, it was revealed that there are statistically significant differences between adolescents with high and low Ego-identity in their overall score of Ego-identity.