French President Emmanuel Macron will today meet EU Council President Donald Tusk in Paris, the new leader's office said.
The two will have lunch at the Elysee Palace before Macron is expected to announce his cabinet appointments.
In picking Macron, Tusk said the French people had chosen "liberty, equality and fraternity" and "said no to the tyranny of fake news".
Macron, who ran a pro-European election campaign, kept with tradition by visiting German Chancellor Angela Merkel on Monday in his first trip abroad after taking office.
The pair now at the centre of the European project vowed to give it new impetus, saying they were ready to change treaties if necessary.
Macron has urged a reconstruction of the EU to fight off a recent surge of populism on the continent.
The French president yesterday hosted UN Secretary General Antonio Guterres, the first foreign dignitary to visit since he took office on Sunday.