Two Australian Chinese-language papers have dedicated their front pages to an open letter backing billionaire Huang Xiangmo, whose permanent residency was cancelled for reasons including character grounds in early February.

The letter, which appeared on the front pages of the Sing Tao Daily and Australian Chinese Daily and inside a third, the Daily Chinese Herald on Saturday, includes more than 120 community groups protesting the decision to effectively bar Mr Huang from Australia.

Huang Xiangmo hopes to return to his palatial Mosman home. Credit:James Brickwood

It says the Morrison governent's decision to cancel Mr Huang's residency is outrageous and calls for it to be overturned.

The letter, which appears to be a paid ad, marks a new escalation in Mr Huang's fight to have his residency reinstated.