Australia flanker George Smith has resisted the temptation to head to Europe and has re-signed with the Australian Rugby Union and the Brumbies for a further two years.

"The opportunity to play at another World Cup was a huge motivation," said Smith, who has played at the previous two showpiece events.

"There were a lot of factors, however, that went into this decision. First and foremost, it's always a privilege to be in the Wallabies jersey and my goal is to be in it as long as I can. But it also comes down to coaching, lifestyle, family and the opportunity for financial security. It's a combination of all those things."

Smith, 28, is second on the Brumbies' all-time caps list with 118, and his decision to stay puts him in line to eclipse George Gregan's Super Rugby record of 136.

"I've never made any secret of wanting to remain a Brumby for life and I'm extremely happy to sign on for another two years," he added.

"I'm confident we are working towards something very special."