The aim of the study is to investigate the effects of joinining the sport activities as a competitor on the state anger-anger expression situations among high school students. 117 volunteer students studying at a high school level and 64 of whom do sports actively in a sports club and 53 of whom do not do sports actively, participated in the research. In the study, “The State Trait Anger Scale” which was first developed by Spielberger and then adapted to Turkish by Özer(1994)was applied. According to the findings of the study, no statistical difference was found comparing the anger dimensions between the groups of high school students who do and don’t do sports actively on the dimensions of trait anger, anger- in, anger-out and anger-control. According to the findings, since the adolescence age reactions of the ones who do and do not do sport have similar or dominant, it was found that the results were also related to the adolescence. Although a great number of scientific studies show that joining sports activities has positive effects on introverison, difficulty with expressing oneself, gaining social environment; in the light of this research’s findings and evaluations, sports doesnt have a direct effect on controlling of anger situations. However, sport is an important tool to provide important advangates for the development of individuals physiologically, psychologically and interms of social features. In this sense, orientating individuals to sports should be encouraged.