Present study displays the relationship between personality traits (extroversion and introversion) and anxiety level of adolescents studying in schools affiliated to HBSE. A sample of 150 students (75 males and 75 females) of XI class from four schools was randomly selected. As per the findings percentage of introverts was higher (32.67%) as compared to introvert (25.33%). Percentage of females with high anxiety level was higher (73.66%) as compared to males (62.67%). Significant difference was found between the anxiety level of males and females. Extroversion and anxiety level of adolescents were more susceptible to anxiety.