"I think I'll play until I'm about 38 or 40 because my game is not based on pace or power, it's all about knowledge of football and manipulating the ball," Barton said. "So I'm confident I can play for a long time."
The 29-year-old also says that he would not rule out a move to play abroad.
"If I decide to coach or manage in the future, it would be quite prudent to have experienced a different culture or philosophy of football," he added.
"Or even just experiencing how the approach changes when you manage players from different backgrounds or cultures.
"If the opportunity arose to play abroad in the future I'd definitely consider it."
Barton signed for QPR at the end of the summer transfer window after criticising the setup of his old club Newcastle.