The court said that Li Yuan, his sister, was also convicted on charges of harboring a criminal.
She gave Li 1,000 yuan to help him escape. She was put on probation, the court said.
Li worked for Luoyang City Fire Bureau and later became an official with the city's Quality and Technical Supervision Bureau, the Southern Metropolis Daily reported.
According to police, Li kept the women - all in their early 20s - with the sole purpose of making money through prostitution or pornographic sites.
According to Xinhua news agency, the Luoyang police chief apologized last year for failing to detect the crime earlier and suspended four policemen.
126-centimeter-tall couples attend group wedding