A China-based property firm that has donated hundreds of thousands of dollars to Australian political parties has added former deputy premier Andrew Stoner to its payroll eight months after he left Parliament.

Mr Stoner has started a part-time, paid advisory position with Yuhu Group Australia, according to advice tabled by the NSW parliamentary ethics adviser, John Evans.

Former NSW deputy premier Andrew Stoner has started a part-time, paid advisory position with Yuhu Group Australia. Credit:Dominic Lorrimer

Yuhu Group has previously hired former NSW Treasurer Eric Roozendaal and also mysteriously paid thousands of dollars to settle a legal dispute for Labor Senator Sam Dastyari.

Mr Stoner has has told Mr Evans the role involves "providing advice on suitable investments in the agribusiness sector and export of agribusiness products" but not lobbying government.