The 1988–89 Norwegian 1. Divisjon season was the 50th season of ice hockey in Norway. Ten teams participated in the league, and Sparta Sarpsborg won the championship.
| Club | GP | W | T | L | GF–GA | Pts | ||
|---|---|---|---|---|---|---|---|---|
| 1. | 36 | 28 | 1 | 7 | 198:121 | 57 | ||
| 2. | 36 | 22 | 1 | 13 | 180:153 | 45 | ||
| 3. | 36 | 21 | 2 | 13 | 182:154 | 44 | ||
| 4. | 36 | 21 | 2 | 13 | 159:135 | 44 | ||
| 5. | 36 | 18 | 3 | 15 | 164:160 | 39 | ||
| 6. | 36 | 15 | 3 | 18 | 165:171 | 33 | ||
| 7. | 36 | 14 | 2 | 20 | 142:168 | 30 | ||
| 8. | 36 | 13 | 2 | 21 | 158:161 | 28 | ||
| 9. | 36 | 11 | 5 | 20 | 158:183 | 27 | ||
| 10. | 36 | 6 | 1 | 29 | 120:220 | 13 |