The purpose of this study is to compare thought -action fusion and anxiety sensitivity among girls and boys adolescents having obsessive-compulsive symptoms in clinical and nonclinical extent. The survey selects 385 high school students in city of Esfahan, Iran and distributes a questionnaire among them. All questions are designed in Likert scale and participants are divided into two groups of with and without OCD. The results show that there is a significant and positive difference in thought -action fusion and anxiety sensitivity among girls and boys adolescents having or symptoms in clinical and nonclinical l extent (P<0.01).