| 1970–71 1. Slovenská národná hokejová liga season | |
| League: | 1. SNHL |
| Sport: | Ice hockey |
| No Of Teams: | 12 |
| Season: | Regular season |
| Season Champ Name: | League Champion |
| Season Champs: | AŠD Dukla Trenčín |
| Nextseason Year: | 1971–72 |
| Prevseason Year: | 1969–70 |
The 1970–71 1. Slovenská národná hokejová liga season was the 2nd season of the 1. Slovenská národná hokejová liga, the second level of ice hockey in Czechoslovakia alongside the 1. Česká národní hokejová liga. 12 teams participated in the league, and AŠD Dukla Trenčín won the championship. TJ ZPA Prešov and TJ Strojárne Martin relegated.