Self-efficacy is the extent or strength of one's belief in one's own ability to complete tasks and to reach the goals. Self-efficacy means how better a person will act in challenging situation and make purposeful decisions. This study aims to analyze the self-efficacy of secondary school students. For this purpose, 500 subjects (male and female) were selected randomly from senior secondary schools situated in four districts of Haryana. Self-efficacy questionnaire (SEQ) developed by Muris (2001) was used to measure the self-efficacy of the school students. Finding of the study indicates significant difference in government and private school students, urban and rural school students, science and arts stream students, male and female students. Age-wise no significant different was found in self-efficacy of different age groups. It is suggested that necessary help should be provided to adolescence so that they can utilize their capabilities in proper manner.