The Orchard County came from five points down in the second-half to earn victory after extra-time.
They will now face Galway in the decider, which takes place on Sunday, July 28.
We asked you to send in your pictures and you did not disappoint with over 150 responses!
Here are just a few of the pictures you sent us. Don't worry if your picture didn't make it into our gallery, we have lots more coverage to come across the Reporter newspaper and website in the coming weeks ahead of the final!
9. Armagh fans at Croke Park
Natasha Trainor sent us this picture of these kids having a great day out at the semi-final. Photo: submitted
10. Armagh fans at Croke Park
Sina Parr Conlon sent us this snap of some young Armagh fans in their seats for the big match. Photo: submitted
11. Armagh fans at Croke Park
Sent in by Ciara McGlade. Photo: submitted
12. Armagh fans at Croke Park
The McConville family at Croke Park. Photo: submitted