Self-efficacy is individual’s believe about his/ her ability to achieve or face the problem in life. Adolescents is a phase of life which there are many changes in some aspect such as cognitive, change in interact with people, and a process when a person looking for the identity of his or her self. Adolescents cannot separated by any stressor in daily life. Self-efficacy is needed so that the adolescents could show adaptive response and find the best solutions to the problems. The aim of this study is to know the level of self-efficacy of adolescent in junior high school students. This descriptive quantitative study used purposive sampling technic to gain 86 junior high schools students as the study samples. The level of self-efficacy of the adolescents was asses by Youth Empowerment/ Efficacy-Mental Health questionnaire. Univariate analysis was used to analyze the data and the result show that the level of self-efficacy of the adolescents were low. Through this study, we encourage every part that contribute with the adolescent to support and give interventions to coach the adolescent cope with the problem and gain the good self-efficacy level.