ABSTRACT The major objective of the study was to assess psychosocial resilience experienced by orphan children lost their parents by rebel groups, in Jig-jiga Boarding School, Ethiopian Somali Regional State. A primary data were collected to determine the orphan psychosocial resilience. Both quantitative and qualitative analysis was employed. In quantitative analysis descriptive statistics including frequency, mean and percentage were applied to determine the background and total difficulties of the orphan children. In addition, inferential statistics like chi-squares, two-way analysis of variance (ANOVA), and a multivariate regression analysis were used. In qualitative analysis, the information collected through key informants interviews (KIIs) were documented and analyzed textually to substantiate the statistical results. The study found that orphan children in Jigjiga boarding school have a warm relationship network and dynamics with their caretakers. It also illustrated that strong relationship and high degree of intimacy exist among children. This is evidence for the social resilience of the orphan children in Jigjiga boarding school. The result indicated that the orphan children are psychologically resilient. Some orphan students in Jigjiga Boarding School demonstrated low resilience but most of them experienced psychosocial resilience. Similarly, gender, age, time of parental loss, type of orphan hood, peer groups and familial networks and dynamics were found that they significantly affect the psychosocial resilience of orphans. The integration of orphans within their close relatives should be given priority. Since right peer and familial network and dynamics offer both of psychological and social resilience, the orphan host community should develop harmonized environment for the family members and siblings to visit their orphan children in the boarding school. On the other hand, orphan children should be mad for them to visit other friend at their homes. Key words: Psychosocial, resilience, parental loss, orphans