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头颈部腺样囊性癌是一类具有侵袭性的头颈部少见恶性肿瘤。由于发病率低，缺乏随机对照研究，其证据来源主要为回顾性研究和基于人群的注册性研究。对于头颈部腺样囊性癌的治疗，目前主流推荐是手术加术后放疗，不可手术者采用根治性放疗。但因回顾性研究的异质性较大，在治疗上仍存在一定争议。本文就放疗在头颈部腺样囊性癌治疗中的价值、放疗靶区、放疗剂量、分割模式、放疗新技术以及联合其他治疗等方面进行总结，从而为今后临床实践提供有益的参考。“,”Adenoid cystic carcinoma is an aggressive and rare malignant tumor of the head and neck. Because of the low incidence and lack of randomized controlled studies, the evidence are mainly derived from retrospective analysis and population-based registry studies. Regarding the management of adenoid cystic carcinoma of the head and neck, the current mainstream recommendation is surgery followed by postoperative radiotherapy, and definitive radiotherapy for inoperable patients. However, owing to the obvious heterogeneity of retrospective studies, there are still some controversies. This article summarizes the value of radiotherapy, radiation target volume, radiation dose, fractionated patterns, new radiation techniques and combination therapy, in order to provide beneficial reference for clinical practice in future.