Western Australia's tourism industry has warned that proposed Federal Government changes to working holiday visas could significantly reduce the number of backpackers available to work in regional areas.

The Albanese Government is considering restrictions on extended working holiday stays, including a ballot system for backpackers seeking second and third-year visas, as part of efforts to reduce temporary migration and address visa overstaying.

Tourism Council WA chief executive Evan Hall has warned that the changes could reduce the regional backpacker workforce by as much as 68 per cent, potentially resulting in the loss of approximately 6,100 casual workers across regional Western Australia.

Backpackers provide seasonal employment in tourism, hospitality and agriculture, particularly during busy holiday periods and major regional events.

Hall argued that the proposed arrangements would discourage backpackers from undertaking regional employment because they would have to complete three months of specified work and pay an application fee of approximately $1,000 without any guarantee of receiving an extended visa.

He warned that some backpackers could avoid regional Western Australia altogether, while others might choose to travel to different countries.

Immigration Minister Tony Burke defended the proposed changes, indicating that the ballot for second-year working holiday visas would be limited to 45,000 applicants, compared with approximately 57,000 the previous year.

Premier Roger Cook has previously expressed concerns about Federal immigration restrictions affecting Western Australia's workforce, particularly skilled migration, although the State Government had not confirmed whether it would formally oppose the backpacker visa proposal.

Tourism Council WA maintains that working holiday-makers should be treated differently from permanent migrants because they generally travel, undertake temporary employment and eventually return overseas.

The organisation has called on the State Government and Federal political parties to oppose the proposed restrictions.

The changes remain a Federal Government proposal, and the predicted reduction in regional workers is an industry estimate rather than a confirmed outcome.