Risk behavior is a behavior that increases the likelihood of a undesirable outcome. It has negative consequences for a person who manifests such behavior, his environment, and has negative influence on further development of the young person, increases the likelihood of developing behavioral disorders. Adolescence is a period in which risk behaviors are more frequent in average. Since parents have important role in development of every person, the main aim of this study was to examine the relationship between various types of risk behavior (undesirable normative behavior, use and abuse of psychoactive substances, risky sexual behavior and auto-aggressive behavior) and attachment to parents. Also, there was checked whether there are gender differences in the manifestation of different forms of risky behaviors. In this research 211 subjects participated from various vocational high school courses (115 girls and 96 boys) of age 14-20 years. Questionnaire for socio-demographic data (gender, age, class, course), Inventory of parent and peer atachment and Questionnaire of self-reported risky and delinquent behavior among young people were used for the survey.The results of research show that there are no significant correlations between risk behavior and attachment to parents for the girls and the whole sample. There has been found significant negative correlation between auto-agressive behavior and attachment to father and attachment to parents. Also, there has been found significant difference between girls and boys only for auto-agressive behavior. Results show that girls are more likely to manifest auto-agressive behavior than boys.