| 3. Round | 20/08/1988 | Lierse SK (old) | - | RFC Liège | 1:4 | ||||
| 15. Round | 19/11/1988 | RWD Molenbeek | - | RFC Liège | 1:3 | ||||
| 18. Round | 10/12/1988 | RSC Charleroi | - | RFC Liège | 1:1 | ||||
| 20. Round | 29/01/1989 | RFC Liège | - | Lierse SK (old) | 0:1 | ||||
| 22. Round | 19/02/1989 | RFC Liège | - | Club Brugge KV | 0:0 | ||||
| 23. Round | 25/02/1989 | Sint-Truidense VV | - | RFC Liège | 0:4 | ||||
| 24. Round | 04/03/1989 | RFC Liège | - | RSC Anderlecht | 2:0 | ||||
| 25. Round | 11/03/1989 | KV Mechelen | - | RFC Liège | 1:0 | ||||
| 26. Round | 19/03/1989 | RFC Liège | - | Royal Antwerp FC | 0:1 | ||||
| 29. Round | 01/04/1989 | KSK Beveren | - | RFC Liège | 0:0 |  |
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| 30. Round | 08/04/1989 | RFC Liège | - | Cercle Brugge | 4:0 | ||||
| 31. Round | 15/04/1989 | KRC Genk | - | RFC Liège | 0:1 | ||||
| 32. Round | 23/04/1989 | RFC Liège | - | RWD Molenbeek | 1:1 |  |
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| 33. Round | 06/05/1989 | KRC Mechelen | - | RFC Liège | 1:1 | ||||
| 34. Round | 13/05/1989 | RFC Liège | - | K. Beerschot VAV | 6:1 |
Belgium