目的 :探讨上颌骨动脉瘤样骨囊肿的诊断与治疗。方法 :4例上颌骨动脉瘤样骨囊肿患者 ,1例在局部麻醉下行上颌窦根治术 ,3例在全身麻醉下行鼻侧切开术。结果 :术后随访 13个月～ 2年均无复发。结论 :动脉瘤样骨囊肿以根治性手术切除为主 ,力求彻底。术前DSA检查确认瘤体供血动脉并栓塞 ,对减少术中出血和缩短手术及全身麻醉时间有显著作用。 Objective: To investigate the diagnosis and treatment of maxillary aneurysmal bone cyst. Methods: Four patients with maxillary aneurysmal bone cyst, one underwent maxillary sinus surgery under local anesthesia and three under nasal surgery under general anesthesia. Results: No follow-up of 13 months to 2 years follow-up. Conclusion: Aneurysmal bone cysts are mainly treated by radical surgical resection and they are striving to be thorough. DSA examination before surgery to confirm the tumor feeding artery embolization, to reduce intraoperative bleeding and shorten the time of surgery and general anesthesia have a significant role.