Weibo was flooded with posts featuring the hashtags #IAmGay and #IAmGayNotAPervert, as the site's users protested censorship.
The ban was announced as part of a 'clean-up', with the popular platform saying new guidelines were put in place to 'create a bright and harmonious community environment'.
The controversy prior to this was so huge that the company's Nasdaq shares fell in value.
Recently, an LGBT+ group of more than 100 people too to the streets of Nanjing in a marathon, holding flags for gay rights. It was intended to take place months earlier, but the group's organiser said Weibo's announcement gave it 'added significance'.