The 1970–71 DDR-Oberliga season was the 23rd season of the DDR-Oberliga, the top level of ice hockey in East Germany. Two teams participated in the league, and SG Dynamo Weißwasser won the championship.
| Berlin | – | Dynamo Weißwasser | 3:2 | ||
| Weißwasser | Dynamo Weißwasser | – | Dynamo Berlin | 4:4 | |
| Berlin | Dynamo Berlin | – | Dynamo Weißwasser | 3:4 | |
| Weißwasser | Dynamo Weißwasser | – | Dynamo Berlin | 4:1 | |
| Berlin | Dynamo Berlin | – | SG Dynamo Weißwasser | 3:7 | |
| Berlin | Dynamo Berlin | – | Dynamo Weißwasser | 8:4 | |
| Weißwasser | Dynamo Weißwasser | – | Dynamo Berlin | 6:5 | |
| Weißwasser | Dynamo Weißwasser | – | Dynamo Berlin | 5:7 |
Dynamo Weißwasser wins series 9:7 in points