Presenters Johny Pitts and Rai Price will return for the seventh and eighth series of the show, which was previously shot at Port Lympne in Kent.
Viewers will now get to meet the keepers who care for the animals of Longleat and discover why some of the species at the park are under threat.
The order totals 35 hours, split across two series of 35 x 30 minutes.
CBBC is also continuing its commitment to a web game in which children run their own interactive animal parks. Viewers can unlock new features of the game by using ‘cheat’ codes revealed in each episode of the show.
CBBC controller Damian Kavanagh, who ordered the series, said: “The Roar TV show and website are much loved by our audience and I’m looking forward to seeing it settled in its new home. I’m sure it will continue to excite the CBBC viewers with a whole host of new animals and characters.”
Both series will tx next year.