Ren Zhiqiang, the former moderator of Huayuan, a state-owned real estate group, was convicted for illegal gains totalling 112 million yuan (£12.9m), according to a notice on the website of Beijing No. 2 Intermediate Court.
Known as "Cannon Ren" for his outspoken views posted on social media, Mr Zhiqiang was arrested in March after calling Mr Jinping "a clown stripped naked who insisted on continuing being emperor" after a speech the Chinese president made in February about government attempts to fight the coronavirus.
“People did not see any criticism at the conference. It didn’t investigate and disclose the truth,” Ren wrote.
Mr Zhiqiang was later investigated for a "serious disciplinary violation", dismissed from the ruling Communist Party and charged in a Beijing district court for financial crimes such as using official funds on golf expenses and using office and residential spaces provided for free by businessmen.
He was convicted of corruption, bribery, embezzlement of public funds and abuse of power, the Beijing No. 2 Intermediate People’s Court announced.l
In Tuesday's sentence following an 11 September trial, the court said Mr Zhiqiang had paid back all the money he gained illegally, "voluntarily confessed to all charges", accepted the sentence and will not appeal.
Additionally to the prison sentence, Mr Zhiqiang was fined 4.2 million yuan (£485,427).
Zhang Ming, a retired political science professor at Renmin University, criticized the sentence as especially harsh.
"This just goes to show how anyone who dares speak against the regime will be hammered," Mr Ming said.
During Mr Jinping’s officiation, China has clamped down on dissent and performed an aggressive campaign against corruption.
Earlier this month, Geng Xiaonan, a publisher who had been vocal in supporting dissenting voices such as Mr Zhiqiang’s and former law professor Xu Zhangrun, was also arrested by Beijing police for an alleged illegal business operation, her lawyer Shang Baojun said on Tuesday.
A comment about her arrest or her case was not immediately replied by the police on Tuesday.
Mr Zhangrun, who had taught at Tsinghua University and had slammed Mr Jinping in May for trying to bring the Cultural Revolution back to China, was arrested for nearly a week by Beijing police in early July after being accused of soliciting prostitutes last December. Tsinghua fired him and revoked his teaching licence.