"We can say, 'you can buy a ticket if you believe you're a refugee and you can come to Australia in normal transport at one tenth the cost'," he told journalists at the Federal Liberal party conference in Melbourne.

"The ones that get here, allow them to be processed; the ones that are not legitimate, send them back on the next flight."

Mr Palmer said Australians collectively bore the responsibility of asylum seekers drowning at sea.

"We can eliminate the people smugglers. We can eliminate the problem. We can eliminate the drownings. We can treat people as human beings."

Mr Palmer said he did not approve of the offshore processing supported by both major parties.