The management of the two part surgical neck fracture, three part fracture and fracture-dislocation of proximal humerus is still under debate. Various method of internal fixation have been reported but none of these methods have been consistently successful. The purpose of this study is to analyze the result of open reduction and internal fixation surgical neck fracture, three-part fracture and fracture- dislocation in proximal humerus. From January. 1991 to July l996, fifteen patiens were reviewed and the result were summerized as follows. 1. There were 8 two-part surgical neck fracture, 3 three-part fracture, 4 three-part fracture-dislocation. 2. The results were analyzed accroding to scoring system of Neer; the excellent or satis-factory results were seen in 11 cases, but unsatisfactory results were seen in 4 cases. 3. Complication occured as follows; joint disability in 4 cases, high positioning of plate in 1 case of joint disability. 4. We concluded that T-plate offers satisfactory reduction and good stability at high risk of joint disability. Early mobilization is required in the prevenion of joint disability of shoulder.