She returns to the role she held four years ago but will have additional responsibilities for the media group’s digital development, a statement on the company's website yesterday said.
Brooks was chief executive of News International, now known as News UK, from 2009 to 2011 but she resigned as the phone-hacking scandal at the now defunct News of the World escalated.
Brooks went on to stand trial for phone-hacking, perverting the course of justice and bribery but was cleared of all charges last July.
However, her colleague Andy Coulson, a former editor of the News of the World and David Cameron’s director of comms, was found guilty of conspiring to hack phones and was jailed for 18 months.
From 2003 to 2009, Brooks was editor of The Sun and editor of the News of the World from 2000 to 2003. She began her career at the News of the World as a feature writer on its Sunday magazine in 1989.
Commenting on her reappointment, Brooks said: "I am delighted to return to News UK. It is a privilege to be back among the most talented journalists and executives in the business. I am confident that we can meet the many challenges of this digital age with a combination of cutting-edge technologies and world-class journalism."