Object of treatment of long bone fracture is the reduction of fracture and maintenance of good alignment. Recently operative treatment has been attempted increasingly, but conservative treatment is considered important also. The authors have employed the multiple splint method that is modified from triangular splint method for humerus shaft fracrure originally having designed and reported by ourselves. In our experience of multiple splint method for long bone fracture and ligament injuries, some merits were noticed such as easiness of application, simplicity of removal and reapplication. We report this method with review of literature.