Do you need tickets for Beijing Olympic Park?

There are no tickets. According to the official website of beijing tourism administration, the Beijing Olympic Park is open for free. Located in Chaoyang District, Beijing, at the northern end of Beijing's central axis, it reaches the south bank of Qinghe River in the north, Tucheng Road in the south, Anli Road and Beichen East Road in the east and Cui Lin Road and Beichen West Road in the west, with a total area of 1 1.59 square kilometers.