"We want to work together on a few priorities: security, economy, investment and social protection," the aide told Reuters on Friday.
Like outgoing Socialist President Francois Hollande in 2012, Macron's Monday meeting with Merkel will be his first overseas port of call since winning the May 7 election.
His aide, who declined to be identified, said Macron would also visit French troops abroad "very quickly" after Berlin.
France has thousands of troops spanning across West Africa hunting down Islamist militants, including bases in Mali and Chad.
It also has bases in Djibouti and the United Arab Emirates as well as small contingents in Jordan and northern Iraq as part of a U.S.-led coalition fighting Islamic State militants in the region.