The world of today is shrinking due to globalization as many scientific and technological development has stepped in all fields. Nowadays, the mobile phone is widely used as a means of communication. Mobile phones are a fully-portable medium of electronic communication which enables the transmission of information in the form of sound, text or data interactively between users via a cellular network of relay stations. But it is a sad point to say that most of the students are addicted to the mobile phone. The main aim of the study is that, the students are not aware about their mental health by the use of mobile phones. To know about the effect of use of mobile phone on the mental health of the students, this study is essential. The tool used for the present study is "Likert Attitude Scale" on mental health of students. "Normative Survey method" is also used in this study. The result indicates the mental health of higher secondary students as they are affected by the use of mobile phones.