The purpose of this research was to determine the moral behaviour in terms of some variables of the students who are participating in school sports or not. In this research participated in totally 191 students, all of them having education at different educational situation in Burdur city centre. ''Sportmanship Scale for Physical Education Lesson'' developed by KOC.SPSS 22.0 and Mplus 7.0 Windows programmes were used in statistical analysis of data obtained from research. In the end of the research, independent samples T-test was applied for students' morally behavior, for the sports games in order to know whether there are differences by gender or not. According to the analysis result, there are no differences between male and female students' moral conduct score. For understanding the effects of age groups of the students, 6th, 7th and 8th grades were compared using ''Analysis of Variance'' (ANOVA). This comparison results showed meaningful differentiation for age groups of the students' moral behaviour in sports games. At the same time students who attended both physical education lesson and school competitions had a significant difference in scores of appropriate behaviour. As a result, students who participate in competitions have more appropriate behaviour score than the ones which only participate in physical education lessons.