The Queensland Liberal and National parties already have agreed to work towards forming a new party called the Liberal National Party of Queensland.

Weekend talks between Liberal president Alan Stockdale and Federal Nationals president John Tanner gave the green light for ballot papers to be sent out to more than 5000 Queensland Liberal Party members from tomorrow.

If they show support for the merger, the new party will be officially created at special conventions of each party on July 26 and 27.

The State presidents of both parties today said it was the first step to defeating the Bligh Labor Government.

Nationals State president, Bruce McIver, said it would be an historic reform.

"This model, with the strong support from State and Federal organisations, will put us in the strongest position to defeat the Labor Party at the next state election and give the people of Queensland a government committed to fixing issues like the hospital crisis, the roads crisis, and the water crisis," Mr McIver said.

Liberals State president Gary Spence said the federal organisation's support was critical.

Mr Spence said it was the "first stepping stone to winning government".

"This is the platform from which we can now attract the best and most diverse candidates, from which we can best tailor and fine-tune our policy platform for a modern Queensland," he said.

Nationals Leader Lawrence Springborg, who has led the merger charge and would head the new party, said it was another step in an "inevitable" direction.

"Everyone now is working in unison and walking in unison toward the inevitable conclusion," Mr Springborg said.

The federal organisations also agreed to support a new constitution and principles agreement to assist the transition to a merged party.

Ballot papers are being posted to rank and file Liberal members in Queensland today and must be returned by June.

A draft constitution and details of the principles agreement will be available on the Liberal Party's website from tomorrow.