［ 研究背景］ 下颌骨骨折的治疗方法较多， 各种治疗方法均有各自的优缺点．［ 病例报告］总结分析了住院患者的下颌骨骨折治疗情况，受伤原因中打架纠纷、交通事故、意外摔伤分别占３９ ％ ，２８ ％ ，２０％ ，治疗时无明显错位及手法能复位者采取保守治疗，粉碎性骨折、骨断端错位明显或骨缺损时行手术治疗，手术治疗者的病情恢复优于保守治疗者．［ 结论］ 坚固内固定技术符合解剖复位、无创外科、稳固固定及早期功能的骨折治疗的现代原则 [Background] Treatment of mandibular fractures more, a variety of treatment methods have their own advantages and disadvantages. [Case Report] The treatment of mandibular fractures in hospitalized patients were summarized and analyzed. Fighting disputes, traffic accidents and accidental falls accounted for 39%, 28% and 20%, respectively Conservative treatment, comminuted fractures, dislocation of the bone fracture or significant bone defect surgery, the surgical treatment of patients with better conditions than conservative treatment. [Conclusion] The solid internal fixation technique conforms to the modern principles of anatomic reduction, noninvasive surgery, stable fixation and early treatment of fracture