Ramires has signed a contract extension with Chelsea through the 18-19 season.
Ramires joined Chelsea from Benfica in 2010 and he has since made 241 appearances for the Blues.
Ramires told the club's official website: "I am very happy to sign a new contract with Chelsea.
"My family and I are very happy here in London and in the past five years the club has lifted every major trophy. I hope to be an important part of many more successes in the next four years."