目的：探讨舌癌、口底癌较为理想的手术方法及其适应症，提高患者术后生存质量。方法：应用保留下颌骨下缘或下外侧骨板以维持下颌骨连续性的舌癌口底癌联合根治术治疗舌癌、口底癌４７例。结果：术后患者颌面部畸形轻微，较好地保持了口腔功能。３年、５年生存率分别为７７．７２％±４．８０％和６６．６２％±９．２８％。结论：此手术是一种有效且术后生存质量较好的根治性手术，值得临床推广应用。 Objective: To explore the optimal surgical methods and indications for tongue cancer and oral floor cancer, and to improve postoperative quality of life of patients. Methods: 47 cases of tongue cancer and oral floor cancer were treated with tongue cancer combined with radical gastrectomy in the treatment of mandibular continuity by keeping the lower edge of mandible or lower lateral bone plate. Results: The postoperative patients had mild facial and maxillofacial deformity and good oral function. The 3-year and 5-year survival rates were 77.72% ± 4.80% and 66.62% ± 9.28%, respectively. Conclusion: This operation is an effective and good quality of life after radical surgery, it is worthy of clinical application.