本文通过对《史记》、《汉书》中有关“丰”建县史料的进一步解读,论证了“丰”建县之前虽是沛县的一个乡邑,但却有着与沛县城一样规模的城池,这样,在沛县就形成“一县两城”的局面,也使“丰”有了另外置县的基础。到了汉高祖时期,“丰沛”分离,“丰”终于立县。由此,以上论证对有关论著中将“丰”建县时间提前至秦末的观点也进行了反驳。 Through the further interpretation of the historical data about the establishment of counties in the Records of the Historian and the Han Dynasty, this paper argues that although it was a township in Peixian before the establishment of the county of Feng, The same size of the city, so that in Peixian formed “one county and two cities ” situation, but also to “abundance ” has set the basis for another county home. Han emperor came, “abundance ” separation, “abundance ” finally established county. As a result, the argument above also contradicted the view that “Feng” was advanced in the related treaties to the late Qin Dynasty.