Back ground: Stress threatens the wellbeing and perception of adolescents and reduces their ability to cope with threat. Adolescents in foster care are more liable for stress than other adolescents. The aim of this study was to assess the effect of progressive muscles relaxation technique on reducing stress among adolescent at Orphanage in Assiut City. Subjects and method: This study was conducted in three foster care settings at Assiut , these settings were lelianTrasher, Dar-ElSafa and Dar-Elhanan). A quasi Experimental research design was used. A convenient sample of all adolescents either males or females and their ages ranged from 12-18 years. One tool was used in this study. Results: A adolescents in the study group had lower level of stress in posttest1,2,3 than on pretest(severe stress was present in 18.9%,24.3%,27% and 91.9%).Meanwhile there were no statistical significant difference between adolescents in the control group in relation to their level of stress (severe stress was present in 89.2%,86.5%,89.2% and 91,9%).It was concluded that progressive muscle relaxation technique reduces the level of stress among adolescents in study group. Recommendations: Social workers in orphanage institutions should use and teach different types of relaxation techniques as progressive muscle relaxation technique to promote psychological wellbeing of orphan children.

Key Words: Adolescents, Stress, progressive Muscle Relaxation Technique, Orphanage