Timor-Leste President Jose Ramos-Horta is set to visit Australia for talks with political leaders and formal events.
Dr Ramos-Horta is expected to meet with Prime Minister Anthony Albanese, Opposition Leader Peter Dutton and Foreign Minister Penny Wong in Canberra on Wednesday, as well as address the National Press Club.
On Thursday, there will be a number of formal events including a meeting with Governor-General David Hurley.
"The president's visit reflects the deep ties between our two countries," Mr Albanese said in a statement.
"This visit will be an opportunity to further deepen this relationship and explore avenues for strengthened co-operation both bilaterally and in the region."
The trip comes after Senator Wong's visit to Timor-Leste last week, which included discussions about a dispute over the Greater Sunrise gas project.
Senator Wong said the country faced "serious economic challenges" as talks were held over its sovereignty and how the key project had been "stuck" for several years.
"We need to engage and discuss ... so we can find a way to unstick it," she said.
"We've had a lot of discussions about the diversification the economy."
Senator Wong said Australia had an affection for Timor-Leste given the role it played in helping the nation achieve independence from Indonesia.
The Greater Sunrise gas field is located in the Timor Sea, off the northwest coast of Australia.
The Timorese government wants Australian energy company Woodside to pipe the gas to its southern coast, instead of its preferred site at an established gas processing hub in Darwin.
Dr Ramos-Horta says his government will turn to China for investment if the project remains stalled.
He has pressured Woodside to agree to a proposed new processing hub in his nation.