Nanjing subway has no special discount for college students. If you use Jinling Pass, you can get a 15% discount. College students have reached the age of 18, so they can't get a student card like primary school students or middle school students.

Nanjing Student ID Card handles subway cards at half price. As long as students have a student ID card, they can go to the subway entrance and then take the bus to scan the student ID card.