Background: Paediatric subtrochanteric fractures constitute 1% of all the fractures in children. Subtrochanteric fractures in paediatric age defined as 10% length of total femur below lesser trochanter. Mostly these fractures are unstable type. There are various treatment options available for management of this fracture depending on the age group of the patient. But there is no well defined management for adolescent subtrochanteric fractures. Method: This study includes 20 patients present to orthopaedic emergency with closed subtrochanteric fracture without distal neurological deficit. Patients were managed operatively after informed consent with proximal humerus locking plate under regional anaesthesia. Postoperatively patients were kept non weight bearing with in bed exercises. Patients were followed at 2weeks, 6weeks, 12weeks, 24weeks and 36 weeks. Patients were evaluated functional and radiologicaly. Results: There were 20 patients included in this study. There was no gender difference in incidence of fracture. The average time of union was 11.4 wks in adolescent age group. There was no other early and late complication. All patient were mobilized with protected weight bearing with some support at average of 10 wks. All patients were followed till 9 months. The final average harris hip score was 91. Conclusion: Proximal humerus locking plate found to be excellent choice of implant for any pattern of subtrochanteric fracture. The plate surface found to be well contoured according to proximal femur lateral surface.