The purpose of this study was to determine the role of emotional regulation onresilience in boarding school students based on semi military. This research uses simplelinear regression method.. Measuring instrument used was a questionnaire consisting oftwo scales : scale of resilience (Reivich & Shatte, 2002) and the scale of emotionalregulation (Thompson, 1994). Sample of the study was 90 persons (N = 90) which is amixture of male and female students of boarding senior high school "X" in Magelang. Theresults of this study indicate that the the results of this study indicate that the regressioncoefficient of 0.665 and R 2 of 0.466. These results show that emotional regulation plays arole in resilience of 46.6%. So it can be concluded that emotional regulation plays a role inresilience in boarding senior high school "X" students based on semi military.