| 18. Round | 23/02/1990 | 1. FC Union Berlin | - | BSG Chemie Velten | 0:0 | ||||
| 20. Round | 09/03/1990 | 1. FC Union Berlin | - | KWO Berlin | 3:1 | ||||
| 21. Round | 17/03/1990 | BSG Bergmann Borsig | - | 1. FC Union Berlin | 3:2 |  |
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| 22. Round | 23/03/1990 | 1. FC Union Berlin | - | BSG Schiffahrt/Hafen Rostock | 1:0 | ||||
| 26. Round | 16/04/1990 | 1. FC Union Berlin | - | BSG Aktivist Schwarze Pumpe Hoyerswerda | 0:0 | ||||
| 27. Round | 21/04/1990 | BSG Stahl Hennigsdorf | - | 1. FC Union Berlin | 1:0 | ||||
| 28. Round | 27/04/1990 | 1. FC Union Berlin | - | Motor Schönebeck | 3:0 | ||||
| 29. Round | 04/05/1990 | 1. FC Union Berlin | - | BSG KKW Greifswald | 5:0 | ||||
| 30. Round | 12/05/1990 | BSG Rotation Berlin | - | 1. FC Union Berlin | 1:1 | ||||
| 33. Round | 24/05/1990 | 1. FC Union Berlin | - | Dynamo Fürstenwalde | 2:1 |
Germany