Hello, the difference between different campuses of Nanjing University: 1, the old and the new are different. Xianlin campus is a new campus; Gulou campus is an old campus. 2. Living students are different. Undergraduate 1-3 grades will stay in Xianlin campus; Gulou campus is responsible for graduate students and some senior undergraduates. 3. Different geographical locations. Xianlin is at Xianlin Campus Station of Nanjing University on Metro Line 2. Gulou campus is located in the subway 1 line Gulou (near the teaching area) and Zhujiang Road Station (near the dormitory area). Pukou Campus is a private university invested by Nantah and has nothing to do with Nanjing University itself. Nantah is considering vertical relocation and is actively preparing to relocate some departments to Xianlin as a whole. The long-term plan is to move to Xianlin, with Xianlin as the main campus. That's my answer, thank you?