The 1997–98 B Group was the 42nd season of the Bulgarian B Football Group, the second tier of the Bulgarian football league system.
A total of 16 teams contested the league.
[1] Septemvri Sofia, Pirin Blagoevgrad and Shumen were promoted to Bulgarian A Group.
Montana, Port-Avtotreid Varna, Storgosia Pleven and Dunav-Rakovski Ruse were relegated.