According to the psychological and social changes of adolescence, people in relationships with family, school and peers experience conflict. In shaping attitudes and views of adolescent, emotional aspects of relationships between parents and children are very important. Meanwhile, reviewing of the factors that influence the development of mental health, happiness and hope in the lives of young people involved, become important. This study aimed to evaluate the mental health, happiness and life expectancy in children of veterans and non-veterans in Qom’s Shahed schools, 2015. This was a descriptive-comparative study. Questionnaires were completed by 286 high school female students in Qom through multi-stage sampling (cluster and stratified). Research tools: demographic questionnaires and 3 standard questionnaire (Oxford health, happiness and life expectancy, Schneider). The data collected were analyzed by SPSS software. Mental health, happiness and life expectancy in students with veteran and non-veteran parents were not significantly different. Among the studied variables, only the average had a significant relationship with all three of these variables. Kids are the future of the country, so their public health, happiness and life expectancy is of particular importance. Therefore, planning for them, makes the future of the country. To have a healthy and happy society, it is useful to have a special look at this generation.