The paper presents a comparative study of defensiveness being one of peculiar features of orphaned children of various ages. Orphaned children have defensiveness being most often primitive and undifferentiated with regard to everyday situations compared to that of children from nuclear family being more complex, diverse and flexible. This difference of defensiveness among orphaned children is peculiar both to primary school-aged children and teenagers as no remarkable development of defensiveness with transition to adolescence is detected. At the same time aggression busting is revealed, which is peculiar to orphaned children and markedly downgrades defensiveness quality. After all the reason of orphaned children’s distortion of aggression and defensiveness notwithstanding the age is frustration of parental affection need.