Hall arrives on the south coast on dual registration from Tottenham Hotspur, and said she was thrilled to join the club.
The 18-year-old is set to wear the number nine shirt and could be in line for her debut at Maidenhead United this weekend.
The young forward joins the Cherries as they hope to extend their winning run in the league, having won nine out of nine games so far this term – while also aiming to add silverware in the National League Plate and the Hampshire Senior Cup.
Hall told afcb.co.uk: “The first day is always daunting stepping into a first training session but the squad were so welcoming.
“They are very passionate and it’s the best standard I have played. They have kind of taken me under their wing and I’m very pleased.
“I’m a very competitive person and I love to win. To be here, it has that passion. I can’t wait.
“When on the pitch I am very, very competitive. I can’t wait to show all the fans what I can do.”
Hall’s father went to university in Bournemouth and she said she has a good group of friends in the area, adding that she has previous memories of playing football in the town.
She said: “My family always used to come down whenever it was sunny, like everybody else in the UK we wanted to get to the beach!
“Whenever I came down here, we never used to bring a football, I always used to say ‘dad, can we buy a football at the shop?’ “We would put two cones out and it would always be me against my two brothers and I’d always lose. But each time I did play on the beach I’d get that little bit better because they’d be absolutely hammering me!
“My family are my top supporters. They never miss a game. I go to all my brothers’ games and they are with me through and through – always by my side when I need them.”