The incident occurred on Wednesday before the park opened at 10:00 local time (09:00 GMT), and the girl could have been taking part in a special visit.
The event follows a number of other animal attacks at zoos and wildlife parks in Europe.
According to the German newspaper Bild, the girl was injured by at least one animal and suffered head injuries.
The eight-year-old was in an enclosure with other children and a staff member when she was attacked.
An eight-year-old girl has been seriously injured in a wolf attack at a German wildlife park.
Following the incident, the girl was taken to hospital by helicopter.
The park, located in the town of Baruth/Mark, has been closed temporarily and is set to reopen on 2 November, according to its website, which did not give further details.
The park, in the town of Baruth/Mark, has been closed temporarily and is set to reopen on 2 November, according to its website, which did not give further details.
The incident comes after a number of other animal attacks at zoos and wildlife parks in Europe.
It reported that the incident happened before the park opened at 10:00 local time (09:00 GMT) and that the girl could were taking part in a special visit.