Farmers in New South Wales have been told they can rest easy about their Government ensuring their future.

This comes after Thursday's announcement of a policy described as "historic", which is said to ensure their "freedom to farm".

Minister for Primary Industries Niall Blair said the policy was a comprehensive, state-wide approach to resolve issues of conflict over land use when it came to agriculture.

However Mr Blair has told the ABC that the policy does not address land-use conflicts such as those found on the Liverpool Plains, in which farmers are fighting against the development of mining in prime agricultural land.

He said those conflicts are dealt with in other NSW Government policy settings.

"The issue between mining and agriculture is being addressed under different types of legislation," Mr Blair said.

"Those disputes [on the Liverpool Plains and in the Southern Highlands] are already dealt with under different instruments."

The Minister said the "Right to Farm" policy related to issues such as those created by urban sprawl, where new residents were coming into traditional farming areas and making what he described as "frivolous complaints".

"This is to deal with situations where legitimate farmers are having to fight complaints such as those about noise and odour," he said.

Mr Blair said the policy had been specifically designed to avoid any concerns that it might reduce farmers' ability to adapt and diversify their farming operation.

It would also ensure farmers were suitably placed to maximise the return on their farms, their major financial asset.