Abstract
The concept that media has an effective role in social change is a complex question in itself. However, as the media is directly connected with lives of people, it is necessary to focus on this subject-area. This study has been presented on the basis of the ground of mass communication and principles of the media and review- analysis of previous studies in this sector. Media content and messages have a deep impact on the mood of readers, sources and viewers. Consequently, the person's concept, perspective and field of thought are affected. Eventually, because of this the individual's behavior will change and in overall scenes of change appear in the society. In the past few years, the number of media in Nepal has been growing exponentially, and our society is not immune to the changes caused by the influence of media.