| 1. Round | 16/08/1989 | Cercle Brugge | - | RFC Liège | 1:0 | ||||
| 2. Round | 19/08/1989 | RFC Liège | - | Sint-Truidense VV | 2:0 | ||||
| 3. Round | 30/08/1989 | K. Beerschot VAV | - | RFC Liège | 1:0 | ||||
| 4. Round | 09/09/1989 | RFC Liège | - | Standard Liège | 0:0 | ||||
| 6. Round | 23/09/1989 | RFC Liège | - | KV Mechelen | 0:0 | ||||
| 7. Round | 30/09/1989 | KAA Gent | - | RFC Liège | 3:0 | ||||
| 8. Round | 07/10/1989 | RFC Liège | - | KFC Germinal Ekeren | 2:0 | ||||
| 27. Round | 24/03/1990 | Lierse SK (old) | - | RFC Liège | 2:1 | ||||
| 28. Round | 01/04/1990 | RFC Liège | - | KSK Beveren | 3:2 | ||||
| 29. Round | 07/04/1990 | RSC Charleroi | - | RFC Liège | 2:0 | ||||
| 30. Round | 14/04/1990 | KSV Waregem | - | RFC Liège | 3:1 |  |
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| 32. Round | 28/04/1990 | KRC Mechelen | - | RFC Liège | 1:1 | ||||
| 33. Round | 05/05/1990 | RFC Liège | - | Sporting Lokeren | 4:0 | ||||
| 34. Round | 12/05/1990 | RSC Anderlecht | - | RFC Liège | 4:2 |
Belgium