The 27-year-old joined the Blues from Benfica in 2010 and he has gone on to play a vital role in the side's recent successes under an array of different managers.
"I am very proud to have completed these 200 games for Chelsea," Ramires told Gazeta Esportva. "It's a huge honour to be one of the players in the current squad that have worn the shirt the most times.
"I hope to be at Chelsea for much longer and to achieve other important milestones in the future of the club."
Brazil international Ramires, who is tied to a five-year contract at Chelsea, has appeared four times for the West London outfit this season, scoring one goal.