During Ming (1368-1644) and Qing Dynasty (1644-1911), many memorial archways were built in ancient Huizhou. They were regarded as culture symbols of Chinese ancient architectures. Owing to the natural and man-made disasters, many of them vanished with time. Today, in total 129 memorial archways scatter in the ancient Huizhou district. In this paper, the origin, development and culture connotation of Huizhou memorial archways are discussed with examples of existing ones. At last, several risks to these memorial archways are presented, which can be categorized as natural reasons, including weathering, flood and landslide etc., and man-made reasons such as demolition, influences of adjacent modern constructions. Several risks were illustrated with example of Tangyue Memorial Archway group, which indicates the urgency of conservation.