The phenomena of aggressive and depressive behaviour are all more common among adolescents. As such, they effects on everyday life and behaviour of young people are huge, especially because in this period of life they are particularly exposed to various stressful situations. The purpose of this research was to explore the connection between aggressive and depressive's behaviour with different ways of coping with stress. It is assumed positive correlation between aggressive behaviour and avoidance of dealing with stressful situations. Also it is assumed positive correlation of depressive behaviour and emotionally focused ways of coping with stressful situations. The study included 117 participants, of which are 73 girls and 44 boys. The research was conducted in four different cities in Croatia. The questionnaire contains: Questionnaire on socio-demographic characteristics of participants, the questionnaire dealing with stressful situations and of the Questionnaire on temperament in early adolescence. 4 The results confirmed the positive correlation between aggressive behaviour and avoidance. Another hypothesis is refuted, and has not been proven statistically significant correlation between depressive behaviour and emotion-focused coping. However, it has been proven statistically significant positive association between depressive behaviour and avoidance as coping with stressful situations. Overall results indicate also a significant difference in the expression of aggressive behaviours by boys than girls, while boys use more aggressive behaviours than girls.