年中度岁是夏秋间瘟疫流行时,通过举行过年仪式以禳除瘟疫的一种民俗行为。对该项避疫民俗,史学界尚无专论。光绪二十八年霍乱大流行期间,年中度岁避疫曾在中国南北各地被普遍采取,本文从民俗现象和防疫事件双重角度对此进行了考察,并阐释清末民间俗信的存在状态以及作为防疫措施的民俗仪式在卫生方面的意义。 Mid-year-old is a folk custom that eradicates the plague through the New Year’s ceremony when the epidemic between summer and autumn was endemic. There is no monograph on the practice of avoiding folk custom. During the 28 years of the cholera epidemic in Guangxu, the mid-aged and mid-year epidemic prevention was widely adopted in both north and south China. This article examines this issue from the perspective of folklore and epidemic prevention events, and explains the existence status of folk custom letters in the late Qing Dynasty. The Significance of the Folklore in Prevention Measures in Health.