The AONI condom made by Guangzhou Daming United Rubber Products beats one created in Japan, it said.
"The previous record-holder was Okamoto. Their thinnest condom had a thickness of 0.038mm," Charles Wharton, records manager of Guinness World Records' Greater China division, told AFP at a press event.
The Guangzhou company makes 200 million condoms annually and they are mainly sold in mainland China, according to its general manager Victor Chan.