| pl | team | gms | pts | w | d | l | g+ | g- | g± |
| 1 | Poland |
6 | 15 | 5 | 1 | 0 | 16 | 2 | +14 |
| 2 | Northern Ireland |
6 | 8 | 2 | 2 | 2 | 6 | 10 | -4 |
| 3 | Bosnia & Herzegovina |
6 | 5 | 1 | 2 | 4 | 9 | 12 | -3 |
| 4 | Romania |
6 | 4 | 1 | 1 | 4 | 3 | 10 | -7 |
The four group winners are promoted to League A. The four second-placed teams play against the third-placed teams in League A.
| date | location | wdl | match | competition |
| 21/02/2025 | Gdańsk |
W | Poland - Northern Ireland 2-0 | WS UEFA Nations League B Group 1 |
| 25/02/2025 | Bucharest |
W | Romania - Poland 0-1 | WS UEFA Nations League B Group 1 |
| 04/04/2025 | Gdańsk |
W | Poland - Bosnia & Herzegovina 5-1 | WS UEFA Nations League B Group 1 |
| 08/04/2025 | Zenica |
D | Bosnia & Herzegovina - Poland 1-1 | WS UEFA Nations League B Group 1 |
| 30/05/2025 | Belfast |
W | Northern Ireland - Poland 0-4 | WS UEFA Nations League B Group 1 |
| 03/06/2025 | Gdańsk |
W | Poland - Romania 3-0 | WS UEFA Nations League B Group 1 |
Poland are promoted to League A.