"Carrie backed the move as she wanted somebody in her family to play her most famous role."
Lourd - whose father is entertainment agent Bryan Lourd - will feature in flashback scenes as a younger version of Princess Leia, hero Luke Skywalker's sister, whom her mother portrayed in the first three Star Wars films.
Abrams has also created walk-on parts for his father Gerald and father-in law James H McGrath Jr, who both appeared in Star Trek under his direction.
Meanwhile Harrison Ford is recovering after breaking his leg on set and will soon begin rehab.
Ford was injured a week ago during filming of the much-anticipated sequel at Pinewood Studios outside of London.
The accident involved a spacecraft door falling on the 71-year-old actor's leg.
Ford's Han Solo pilots the Millennium Falcon, which is returning in Episode VII.
The film is scheduled for release in December 2015.
- Daily Mail