Juan Remy Quignolot has also been charged with unlawful possession of a firearm, armed robbery, breach of public security and conspiracy.
Central African Republic (CAR) officials have convicted a French citizen of being a spy and a terrorist, about a month after his arrest.
Juan Remy Quignolot was arrested on May 10 after police said they had found weapons, heavy weapons and money outside his residence in the capital, Bangui. Authorities have accused him of helping and educating activists in countries that have been embroiled in conflict since 2013.
CAR Attorney General Eric Didier Tambo said on Wednesday Quignolot was charged with spying, unarmed possession of a weapon, terrorism, security breach and government conspiracy.
He did not name any country or organization that Quignolot claimed to be working for, but said any testing would take place in six months.
“If you are harming the security of the home, you are talking about long-term pressure,” he said, referring to the potential punishment.
Quignolot, 55, denied the allegations. There were no immediate comments by French ambassadors to Bangui and the French foreign ministry.
The lawsuit came two days after France withdrew aid to the CAR for allegedly failing to stop the “massive” historic donations “of its officials – a document imposed on Russia, and France’s long-standing anti-immigration policy. .
The French government has already provided officials in Bangui with $ 10 million ($ 12.18m) in budget support. It also houses about 300 troops in the CAR.
Pictures circulating on television the day Quignolot was arrested showed him with his hands tied behind his back, sitting on the sidewalk with a few weapons, ammunition and armor.
Two days later, France condemned the arrests and images as “fraudulent”.
It also said that “information dissemination” was used, “to promote the well-known interest that is being pursued in pursuit of France’s presence and actions” in the CAR.
Quignolot’s arrest was posted on Twitter by Valery Zakharov, a Russian who is a close adviser to CAR President Faustin-Archange Touadéra.
Russia has been assisting the military in the CAR, sending hundreds of military advisers to provide weapons and training government troops to deal with the number of terrorists in the country.
The country, which produces 4.7 million gold and diamonds, has been the scene of repeated violence from the military since 2013, including the 2016 civil war, as well as election-related wars earlier this year.