The aim of this study is to investigate and interact the relationship of computer addiction and internet addiction level with sports in a participation level, sports license statues and years, daily sports hours, weekly sports day, academic success level, sex, family income and parents' education level. In these study participated as volunteers Anadolu High school students at 9th , 10th , 11th and 12th class. Totally 582 students that 256 male and 326 female participated in the study. Study was based survey model. As a data collection tool 13 item information form was used socio - demographic characteristics. Computer game addiction and internet addiction level was determined "Computer Addiction Scale For Adolescents" developed by Ayaş. Data was analyzed by using Mann-Whitney U testnon-parametric statistics to compare differences between two independent variables in terms of frequency, percentage, means and standard deviation of descriptive statistics. In order to determine the relationship among the data Pearsoncorrelation test was used. Significance level was set at 0,05. In conclusion, many factors were identified affecting the addiction level while participants in this study had lower addiction levels. In this research, participants actively in sports academically succeeded less but got higher internet and total addiction levels than the participants who were not active in sports. These levels were affected mostly by sports licence year which also increased addiction levels. Weekly day numbers and daily hournumbers of the sports did not have effect on the addiction level. It was found out that the difference in the addiction levels were resulted from males not females. As a result of individuals on the internet and computer game addiction, they should get away through physical education and sport from a programmatic way and it's time for a more meaningful way of life their to grasp and evaluate the different areas and ensure the socialization with people.