The aim of this study is to examine the relationship between technology addiction levels and peer bullying levels of students at secondary school and to reveal their views on this topic. The survey model from quantitative research method was used in the research. While the population of the research is composed of all secondary schools in district center of Mersin; the sample is composed of 254 secondary school students chosen from the schools according to the method of convenient sampling in the academic year 2022-2023. To determine level of the technology addiction and peer bullying of secondary school students participating in the study, "Technology Addiction Scale" (Aydin, 2017) and "Peer Bullying Scale" (Kutlu & Aydin, 2010) were applied in quantitative phase. In the qualitative phase, data were obtained from the same students with 4 open-ended questions form prepared by the researchers. When the relationship between technology addiction and peer bullying of levels was examined, it was determined that there was a positive and negligible relationship.