Duan Guilong is an author of ancient China about whom very little biographical information survives. His name appears in transmitted bibliographic records, but public sources are limited: neither his dates, his native place, nor the course of his life can be established with certainty. What is known is that he is chiefly associated with a single work, Liangzhou Ji (A Record of Liangzhou), which is classified under Eastern philosophy and deals with the geographical evolution, local customs, anecdotes, and old lore of the Liangzhou region, making it a reference for understanding the history and culture of China's northwest. Because the historical sources are scattered, scholars have yet to determine whether Duan Guilong composed, compiled, or merely edited the text, and readers should examine its textual transmission alongside related histories. On present evidence, his name survives mainly through this work, whose style is plain and concise, concerned with recording what was seen and heard rather than with rhetorical flourish; it retains some value for students of local history and the transmission of ancient books.
