The Australian actor, who already has two adopted children with his wife, Deborra-Lee Furness, wishes to add another member to his family, reported FemaleFirst.
According to a source, "Hugh is a big believer in adoption – not just personally, but from a world view of extending help to parentless children."
The source added, "They are adopting another child now, and plan to welcome a fourth into their family down the road. It has become their mission."
Jackson has been married to Furness for 13 years.