This study aims to identify the relationship between the social Phobia and the irrational beliefs .The Sample is Adolescents in the First secondary class in Damascus . The number of the sample is 207 students (both females and males) from the Town and the City , and from different economic levels . The researcher used two tests : 1- social Phobia Test (2008) . 2 – irrational Beliefs Test (2008) . These two tests have good reliability and validity . The results of the study show that the first hypothesis is right : there are relationships between social Phobia and irrational Beliefs. The statistical technique for studying this hypothesis was the Bearson Correlation . The results of the study shows too that the other three hypotheses are wrong . These hypotheses are : 1- There are relationships between social Phobia and irrational beliefs according to the sex variable . 2- There are relationships between social Phobia and irrational beliefs according to the place of living (City/Town) variable . 3- There are relationships between social Phobia and irrational beliefs according to the economic level variable . The statistical technique for studying these three hypotheses was the Partial Correlation . The results show that there are no effects for sex, environment , and economical level .