The 28-year-old, who debuted for the Sea Eagles in 2006, will stay on with the club until at least the end of the 2013 season.
“Gorgeous George” says he’s glad he can carry on his long relationship with the club.
“It’s pretty much a home for me, Manly, and it’s the place that I always wanted to stay, even before we won the grand final.
“It’s just a good bunch of players, great staff and a club that I really enjoy.”
Rose says he looks forward to defending Manly’s NRL Premiership title under new head coach Geoff Toovey.