| Competition: | Bulgarian B Group |
| Season: | 1997–98 |
| Winners: | Septemvri |
| Promoted: | Septemvri Pirin Shumen |
| Relegated: | Montana Port-Avtotreid Storgozia Dunav-Rakovski |
| Matches: | 240 |
| Total Goals: | 630 |
| Prevseason: | 1996–97 |
| Nextseason: | 1998–99 |
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.