Chinese businessmen with links to Foreign Minister Julie Bishop have donated half a million dollars to the Western Australian division of the Liberal Party during the past two years.

All the donors have links to the Chinese government and the vast bulk of the money was given by companies with no apparent business interests in WA, according to political disclosures.

Ms Bishop, the leading federal member of the party in WA, has singled out each of the three key donors for praise at various events in recent years, Fairfax Media reports.

Chinese businessmen with links to Foreign Minister Julie Bishop, including Huang Xiangmo of the Yuhu Group, have donated $500,000 to the WA branch of the Liberal Party

Billionaire Chau Chak Wing's Hong Kong Kingson Investment Ltd donated $200,000 to the WA Liberal Party in 2014-15.

The businessman, who has donated millions to both sides of government in the past decade, had a building named after him at the University of Technology, Sydney in February 2015.

Ms Bishop officially opened the building, which was partly funded by a $25 million donation by Dr Chau.

The Yuhu Group gifted $280,000 to the WA Liberal Party in 2013-14.

The company's chairman Huang Xiangmo attended a fundraiser with Ms Bishop and Tony Abbott during the 2013 federal election campaign.

Ms Bishop, the leading federal member of the party in WA, has singled out each of the three key donors for praise at various events in recent years

Xavier Soo also donated $20,000 in 2013-14 and the Chinese address listed is the headquarters of Chinese-Australian business the Waratah Group.

Fairfax Media says several of the donations have been obscured by the channelling of funds via executives or related companies, or by the donors' failure to disclose them to the Australian Electoral Commission (AEC).

It says the revelations raise further questions about foreign donations linked to ministers with trade and diplomatic responsibilities and heighten anxiety about the influence of foreign governments in Australian politics and business.

Ms Bishop did not respond to questions about how she handled potential conflicts between her responsibilities as a party fundraiser and minister.