The Market Supervision and Management Bureau of Manhang District in Shanghai City found that Hutaoli Music Bar had violated China's advertising laws, South China Morning Post reported on Sunday.
"These promotion contents are vulgar and have gone against the public order and good customs. The advertisement would easily cause negative effects in society," the market authority said in its punishment order.
The incident has triggered massive attention from social media users in China, with some saying the advertisements were "too much."
The one-night stand culture is more common in the west but less so in much of Asia.
Since 2014, film and television programs featuring one-night stands, adultery, supernatural occurrences and gambling have been banned from Chinese streaming sites.