Technologies continue to develop rapidly nowadays and do not only give advantage to mankind but also disadvantage. One disadvantage is the continuously increasing cyber bullying particularly in school. Cyber bullying has been defined as a type of bullying that involves the use of communication technologies (Emerge, 2010). Like traditional bullying, it is intentional and repetitive. There is plenteousness of talking about cyber bullying but few actually don’t know how detrimental it can be. Cyber bullying is a digital form of bullying done over the internet. This includes activity such as being called fat, stupid person, loser, ugly, freak or fake, harassing others. Despite preliminary efforts to investigate motive for cyber bullying, there is a famine of information on this issue, among high school populations. The purpose of this study is to know the assessment of high school students and how prevalent cyber bullying in Canduman National High School.