Australian Animal Liberation protesters pose for photographers during the launch of an anti-fur campaign in a central Sydney park.[Agencies]

Naked men and women have posed in a Sydney park to launch Animal Liberation's winter campaign against fur.

The three-month long campaign aims to draw attention to the cruelty of the fur industry over the winter months.

Campaign manager Nicole Brown said the group, whose naked protest took place in the city's Wynyard Park, hoped to draw people's attention to the ethical issues surrounding the use of fur for clothing.

"Despite the glamour associated with wearing fur we want to show people the cruelty behind the industry," Ms Brown said.

"There are a lot of really good quality synthetic furs out there now and we would encourage people to wear them instead."

Ms Brown said animals held in fur farms were kept in appalling conditions and killed at a very young age.