Aim. The aim of the study is to understand behavior disturbances and widely comprehended deficits attached to it, with regards to quality of family relations. Method. To explain the etiology and the consequences of the diagnosis of disruptive behavior disorder the authors analyzed literature which allowed combining the theory of attachment and the theory of deficits. In the first part of the script the authors described Bowlby's theory of attachment, which arranges attachment behaviors in behavioral attachment system. To expand comprehension of the subject they mentioned psychoanalytic and system concepts. The second part of the paper is devoted to the definition of deficit phenomenon and determining its different areas on the basis of observations made by the researchers dealing with this matter. Conclusion. In authors' opinion the deficits occurring in children suffering from disruptive behavior disorder are connected with improper family relations. The disruptive behavior disorders may be a way of defense against narcissistic injury as well as motor discharging of the emotional difficulties.