This study aimed to uncover the Psychological Security in relation to Aggressive Behavior in Hearing Impaired Adolescents Students in the Governorate of Muscat. Descriptive Correlative Methodology has been used therein. The study consisted of hearing impaired adolescents in Muscat governance, aged between (12- 21). Total students is (206) students male and female from Al Amal School for Deaf and Gulf College, out of which the sample was (108) male and female students who have been selected as available methyl. Two measurements have been applied: Psychological Security Measurement for hearing impaired adolescents prepared by (Elhady, 2009). The other measurement that has been applied in the study is Aggressive Behavior Measurement for hearing impaired adolescents prepared by (Al- Harbi, 2003). The study has found the following results: The level of psychological security and internal psychological security for teenagers with impaired hearing is medium, whereas external psychological security is high. • No differences of statistical indications related to psychological security level as per gender variable. • The Level of aggressive behavior for teenagers with impaired hearing is low. At all aggressive behavior sections i.e. physical aggression, verbal aggression, and hostility, the average is low, except for anger where the average is medium. • Differences of statistical indications have been found related to aggressive behavior level as per social kind variable (male and female) at all measurements sections, in favor of male students. • There is a negative significant relationship between psychological security level and aggressive behavior level of study sample with impaired hearing. Psychological security measurement, explains about (45.6%) of difference occurring in the aggressive behavior.