The former Bristol City midfielder has penned a new contract at Loftus Road.
His new deal will keep him at the Sky Bet Championship club until the summer of 2021.
"I'm really pleased," Freeman told the club's website.
"I'm happy here - I get on really well with all the boys, all the staff. This feels like home for me.
"I love the club, the fans, and I want to help us progress even more now."
"He was massive in this decision and is probably one of the best managers I've played under. The same goes for his staff.
"I think the boys here would agree with that - and you can see it given the direction we're heading in."
QPR manager Steve McClaren also added: "I am delighted.
To tie Luke down to a longer contract is fantastic news for the club and for Luke as well.
"He is one of the players who attracted a lot of interest from a lot of clubs last summer.
"We resisted that because of what he brings to the team - his goals, assists, his infectious enthusiasm and his willingness to work."