The government says it will be used to "protect the legitimate rights and interest of citizens in cyberspace [and] reduce internet fraud". The ministry also added it wanted to curb down identity theft and resale of SIM cards.
Consumers in the country must now allow telecom carriers to scan their faces when they sign for a new phone service.
Commenting under an article about the new rules, one user wrote: 'This is a bit too much'.
China's telecom operators must now use facial recognition technology and other means to verify the identity of people opening new mobile phone accounts.
Last month, Chinese state media announced the development of a new "super camera".
Some social media users voiced concerns their biometric data could be leaked or sold.
"In the next steps, our ministry will continue to increase supervision and inspection and strictly promote the management of real-name registration for phone users", they said at the time. "What they [the government] are afraid?"
The Chinese government loves face recognition and including it in various services for authentication. That puts China in a position of power to control the market for the technology.
China has been widely sensors and web policy, remove and block content does not want its citizens to see and talk about. The "gait recognition" technology has reportedly already been rolled out in several Chinese cities, including Beijing and Shanghai.
China is often described as a surveillance state - in 2017 it was 170 million CCTV cameras in place across the country with the aim of installing a new 400 million in 2020. "The risk of facial recognition technologies is high and far-reaching".
In early November, a Chinese professor filed a claim against a safari park in Hangzhou, eastern Zhejiang province for requiring face scans for entry, according to the local court.
Internationally, the USA has blacklisted various expertise corporations that work in facial recognition-together with giants like Megvii and Sensetime-for his or her function in propping up a technological surveillance state used to manage the Uighur minority in China's western Xinjiang province.