This came after photos showing a foetus and the mother, Feng Jiamei, shocked web users.
She was made to undergo the procedure in Shaanxi province in the seventh month of pregnancy, local officials said after investigating.
Chinese law clearly prohibits abortions beyond six months.
The Ankang city government said it decided to suspend three officials in Zhenping county following initial investigations. It also urged the county government to conduct a thorough review of its family planning operations, said Xinhua news.
On Thursday night, the city officials apologised to Ms Feng, 27, and her family, the report said.
She was ''forced to terminate her pregnancy'' at a hospital in Zhenping on 2 June, said Xinhua.
Officials in Zhenping County claimed she agreed to the abortion because she was not allowed to have a second child by law. She already has a daughter, born in 2007.
But activists said she was forced into the abortion as she could not pay the fine for having a second child.
"Feng Jianmei's story demonstrates how the One-Child Policy continues to sanction violence against women every day," said Chai Ling of the US-based activist group All Girls Allowed.
The group says it spoke to Ms Feng and her husband Deng Jiyuan after the incident. Mr Deng said his wife had been forcibly taken to hospital and restrained before the procedure.