Julien Benneteau, the France skipper, said: "It would have been unthinkable not to call her up. She is the best player in the country and I want to have the strongest possible team."
Garcia, the world number 19, will be joined by the 44th ranked Kristina Mladenovic and Alizé Cornet who is the world number 50. Pauline Parmentier and Fiona Ferro complete the line-up.
Benneteau, who took over as captain from Yannick Noah in June 2018, has raised eyebrows with his selection of Garcia.
She irritated Mladenovic and Cornet when she decided to concentrate on her single's career in 2017 a few months after competing in the final against the Czech Republic in November 2016.
After a first round defeat in February 2017, Mladenovic pointedly said: "It's better to play and lose with people who are willing to fight with you."
Despite the barbs, Noah picked Garcia for the play-off tie against Spain in April.
However Garcia pulled out due to a recurrence of muscle injury.
Her withdrawal led to sarcastic posts on social media from Mladenovic and Cornet.
Garcia gained her revenge with a straight sets mauling of Cornet in the last 16 at the French Open in June.
"Caroline knows she has been selected," added Benneteau. "And she knows everyone is looking forward to her return and will do their utmost to make her feel comfortable and happy."