To evaluate the clinical results between conservative and operative treatments and to give guidelines in the treatment of angulated fifth metacarpal neck fracture. Materials and Methods: The 43 cases of fifth metacarpal neck fracture (25 operative cases, 18 conservative case) were reviewed. The functional and radiologic results between two groups were evaluated. Results: Both the operative group (preop.: 41.9°) and the conservative group (preop.: 39.7°) showed satisfactory results (operative group: 15.3°, conservative group: 24.1°) immediately after the correction. The maintenance of angulation correction was superior in operative group (15.7°) than in conservative group (34.2°), and patients' subjective satisfactions were superior in operative group too. Depressed knuckle on dorsum of hand was more frequently observed in conservative group (38.9%) than operative group (4%). Functional result in both groups was good. Conclusion: Because the correction of angulation was not maintained well in conservative group and a large portion of complications often occurred in cases of angulation more than 40°, operative treatment is needed in cases of angulation of fractured site more than 40°in the fifth metacarpal neck fracture.