The aim of this reasrch was to explore to realtionship between personalitiy traits, phycial activity and life satisfaction of pupils from third, fourth, fifth and sixth grade of elementary school.The study was conducted on a sample of 117 male students and 116 female students (N = 233). Themeasuring instrumentin this graduate study was a questionnaire consisting of two parts.The first part contained questions which provided data about sex and habits related to physical activities. At the end of the first part of the questionnaire, students were supposed to assess their satisfaction with life. The second part of the questionnaire was related to personality traits – extraversion, comfort, conscientiousness, emotional stability and intellect. The results showed that most students were active in classes of physical education.According to the results, boys are mostly engaged in extra-curricular sporting activities unlike girls. Most of the boys practice football and martial arts, while martial arts and volleyball are most common among girls. It was found that the girls are more conscientious than the boys, and as far as the comfort is concerned, there was a difference between 10-year-olds and 12-yearsolds. The questionnaire showed that younger students are more enjoyable. There are no significant gender differences in life satisfaction. There is also no significant relationship between personality traits and physical activity and there is no visible connection between life satisfaction and sporting activity.