[2] He previously served as an official in the state of Cao Wei during the Three Kingdoms period before his grandnephew, Sima Yan (Emperor Wu), usurped the Wei throne in February 266 and established the Jin dynasty.
Sima Yi became the sole regent and de facto ruler of Wei after seizing power in a coup d'état in February 249.
He also served as a military commander in some battles against Wei's rival states, Shu Han and Eastern Wu.
[8] In June 260, when the Wei emperor Cao Mao was assassinated during a failed coup to seize back power from Sima Zhao, Sima Fu was one of the few Wei officials who wept at Cao Mao's funeral.
"[9] He also held the position of taizai (太宰; "Grand Chancellor") in the Jin government from 17 February 266[10] until his death in April 272 at the age of 92.