Controversial Maltese millionaire biker Alex Vella will never return to Australia following a decision by the High Court.

Mr Vella, 61, the leader of the Rebels gang, has been stranded in his native Malta since June 2014, when the Australian Immigration Minister cancelled his visa on character grounds.

He had applied for special leave to appeal a decision by the Federal Court of Australia to ban him from returning to Australia from  Malta.

The Facebook page Let Alex Vella Return to Australia said on Friday 'Special leave wasn't granted, which we expected...we are considering our next steps'.

But a High Court spokesman told Daily Mail in Australia that the decision was 'the end of the road' for Mr Vella who had exhausted every legal avenue to try to return to Australia.

Last April, the court ruled unanimously against Mr Vella re-entering the country, after the government cancelled the Rebels bikie gang president's visa while he was visiting Malta last year.

The court ruling decision now strands Mr Vella in Malta and separates him from 24 close family members in Australia including his wife, sons and an elderly mother, all of whom are Australian citizens.

Known as 'the Maltese Falcon', Vella is the longtime boss of the Rebels, which Federal Court documents obtained by Daily Mail Australia claim are involved in drug dealing, money laundering, serious assaults, kidnapping, extortion, firearms offences, threatening law enforcement officers and intimidating court witnesses.

In 2014, Mr Vella insisted with the timesofmalta.com that his police conduct was untarnished.

Mr Vella has been the national president of the Rebels since 1973, presiding over a club that has grown to be the biggest in the country with more than 2,000 members.