As one of the most important capitals in Chinese history, Nanjing has continued to exude glory since ancient times. Pukou Railway Station, once the northern gate of Nanjing City, connects Nanjing with many important cities in China. With the deactivation of Pukou Railway Station, the old town of Pukou gradually became depressed. However, in these years the government is planning this area to be a new economic developing town. In the process of high-speed urbanization, how might we conserve this important historical city and bring back the glory of Nanjing? This thesis studies the conservation and adaptive reuse methods of historical architectural heritage as a traffic node, and focuses on cultural continuity and economic feasibility, which can serve as a reference for the conservation of many traffic architectural heritage in China.