This study is designed as diagnostic study in order to detect aggressiveness level of body training and sports vocational high school students and the affecting factors. As a means of data collection an Aggression Questionnaire originally developed by Buss and Perry (1992) and revised by Warren (2000) translated into Turkish by Can (2002) is used. The samples are chosen among Marmara university physical training and sports high school students from freshman to senior, who are voluntary healthy samples, 400 in total. The findings will be discussed under the light of related literature, and based on findings some recommendations will be postulated.