The Brazilian accepted a charge of violent conduct for striking Sebastian Larsson and will miss the rest of the English season.
The former Benfica man hit Sebastian Larsson in the face in an incident that was not spotted by referee Mike Dean and will now sit out the remainder of the season.
"The incident occurred during Chelsea's Premier League fixture against Sunderland at Stamford Bridge on Saturday, April 19. Ramires receives a four-match ban which will start with immediate effect.
"The ban includes three games for this offence plus an additional game for his sending-off at Villa Park last month."
Manager Jose Mourinho and his assistant, Rui Faria, have until Monday to respond to their own charges of misconduct, with the Blues boss facing one for his comments to the media on referees and Faria two for his behavior on the touchline.