关于元末朱元璋部与陈友谅部的龙湾之战,以往研究信赖官方宣传材料《实录》,缺乏对战斗所在地建康城西水道格局的认识,对战役真相的了解和对双方行动的理解尚有深化余地。本文以明初俞本《纪事录》和武将传记等与《实录》对照,辨析、解释战斗过程,以现代地图与历代地方志记载对照,复原元末建康城西的水文地理形势,然后以地理状况进一步解释双方的策略与行动,以战况进一步验证所推断的水道格局,初步廓清了地理和战争两个领域的史实。通过这个细节论证,本文在发掘新材料、严格取舍与深入解读、不同领域史料间的对照互补等三方面,尝试拓展明初乃至明代前期史料的使用空间。 Regarding the Longwan War between the Yuan Department and the Chen Youliang Department of the Yuan Dynasty, previous studies relied on the “factual record” of official propaganda materials and lacked a clear understanding of the pattern of the Jiankang West Waterway where the battle was located. The understanding of the truth of the campaign and the understanding of the actions of both sides were further deepened room. This paper compares Yu’s “Chronicle” with commentary of “Comrade” and “Record” in the early Ming Dynasty, analyzes and explains the process of battle, reconstructs the hydrological situation of Jiankang City west of Yuan Dynasty with the modern map and the records of local history records, The situation further explains the strategies and actions of both sides and further verifies the inferred watercourse pattern with the war and has initially cleared the historical facts in the two areas of geography and war. Through this detail demonstration, this paper attempts to explore the space for the use of historical materials in the early Ming and even early Ming Dynasties in three aspects: discovering new materials, strictly selecting and thoroughly reading, and comparing and complementing historical materials in different fields.