While Orange region wines make up a small percentage of the Australian trade to China, vignerons say they are concerned about the ramifications.

China has slapped tariffs of up to 200 per cent on Australian wine which will seriously raise its price for Chinese consumers.

Mortimers Wines owner Peter Mortimer said they currently had mainly red wines in a warehouse in China.

"We've got enough stock there for 12 months without the tariff being added to it," he said.

Mr Mortimer said he understood the tariff would not be applied to that stock but the tariff could hinder or even stop further shipments.

"We're selling direct to the public," he said.

"Our people in China sell direct to golf clubs, sports clubs, social clubs."

He said future trade would depend on whether those consumers continued to buy the wine at the inflated price.

"It's a show and tell, it's a suck and see scenario," he said.

"If they don't [buy it] we'll fall out of China, we won't export to China."

Mr Mortimer said they had built up the trade relationship over several years and it would be disappointing to see it end due to politics.

Philip Shaw Wines managing director Damian Shaw said he was concerned about the effect on the Australian market if exports to China fell or stopped.

Mr Shaw said wineries had been growing grapes and making wine expecting the trade would continue.

He said it could mean more wine would end up on the local market creating more competition.

"Australia has been building and developing the market, being China, for the last 20 years," he said.

"The political ramifications of what is happening [would impact] on small business practices and small family practices."

Mr Shaw said his winery had been exporting to China for eight years.

"It's a small part of our business, it's not part of our business this year."

He said the situation had come on top of bushfires, drought and the COVID-19 pandemic. "It's just another body blow for our industry," he said.

The export trade crisis has also hit Ross Hill Wines.

It is down about 15-20 per cent due to the Chinese dispute.