ABSTRACT Objective: To investigate the surgical treatment and the feasibility of the building of the standard therapeutic regime of the displaced coronal shear fractures of the distal humerus in adults based on Dubberley classification. Methods: In this study，24 adult patients with the displaced coronal shear fractures of the distal humerus were treated in Navy No.971 Hospital of CPLA from Feb．2014 to Dec．2018 with an average operation time of 4.5 days after injury. There were 11 males and 13 females with an average age of 35 years ( range: 17－60years)．All the patients were typed according to Dubberley classification before operation: ⅠA type in 3 cases，ⅠB type in 2 case，ⅡA type in 6 cases，ⅡB type in 2 cases，ⅢA type in 5 cases，and ⅢB type in 6 cases．Fourteen patients were treated with single Kaplan approach，2 with a Kaplan approach combined with a anterior-lateral approach，8 with single posterior-median approach．All of the fractures were fixed with Herbert screws, full thread cancellous screws and Kirschner wires，6 cases with support locking microplates，and 2 cases with a hinged elbow external fixator．All of the patients were followed up for clinical examination and radiograph check with a record of the range of motion of elbow, fraccture healing time and complications. They were evaluated with the Mayo elbow performance score（MEPS） system． Results: The average follow-up time was 16.5 months ( range 12－48 months) ．The average fracture healing time was 8 weeks． The average elbow joint motion was 6°( 0°－15°) of extention and 120°( 95°－135°) of flexion. The average Mayo score was 92 points ( range:65－100 points)．The excellent and good rate was 91.7%． The complications of traumatic arthritis was in 1 case ,elbow stiffness was in 1 case and heterotopic ossification was in 1 case. Conclusion: According to Dubberley classification，appropriate surgical approach and the internal and external fixing methods could be chosen rapidly and easily and a good treatment outcome could be acquired in the displaced coronal shear fractures of the distal humerus in adults．The building of the standard therapeutic regime based on Dubberley classification of this complicated and debatable fracture may be justified feasible by more studies and longer follow-ups in future.