Is the Terracotta Warriors press pass free of charge?

Free.

The Qin Shi Huang Mausoleum Museum (i.e. the Terracotta Warriors and Horses Scenic Area) is free of charge for tourists with press cards, but visitors are required to bring a valid press card for verification. A press card is a form of identity certificate issued to journalists or related practitioners by the government or professional organizations to prove their professional status. In tourist attractions, tourists holding press cards can enjoy some specific benefits or conveniences, such as free or discounted tickets, priority admission, etc.