The 1970–71 European Cup was the sixth edition of the European Cup, IIHF's premier European club ice hockey tournament. The season started in October 1970 and finished on September 4, 1971.
The tournament was won by CSKA Moscow, who beat Dukla Jihlava in the final
First round
| Team #1 | Score | Team #2 |
|---|---|---|
HIFK 
|
4:2, 4:0 |  GKS Katowice
|
HC Chamonix 
|
3:5, 1:6 |  EC KAC
|
KSF København 
|
3:7, 1:5 |  Újpesti Dózsa
|
Vålerenga 
|
2:5, 2:7 |  SG Dynamo Weißwasser
|
HK Jesenice 
|
13:3, 10:2 |  HK Krakra Pernik
|
SG Cortina 
|
3:4, 2:5 |  EV Landshut*
|
* EV Landshut was disqualified after it was determined that their players Rudolf Hejtmánek and Josef Cvach were not eligible to play, having defected from communist Czechoslovakia during the Prague Spring in 1968 without having been released by their Czechoslovak teams.
Brynäs IF,
HC La Chaux-de-Fonds : bye
Second round
| Team #1 | Score | Team #2 |
|---|---|---|
| HK Jesenice
|
2:5, 3:7 | SG Dynamo Weißwasser
|
| HIFK
|
4:4, 2:7 | Brynäs IF
|
| Újpesti Dózsa
|
3:1, 5:7 (1:3 PS) | SG Cortina
|
| HC La Chaux-de-Fonds
|
1:2, 1:2 | EC KAC
|
Third round
| Team #1 | Score | Team #2 |
|---|---|---|
| SG Cortina
|
6:1, 0:3 | EC KAC
|
| SG Dynamo Weißwasser
|
3:5, 5:12 | Brynäs IF
|
Dukla Jihlava,
CSKA Moscow : bye
Semifinals
| Team #1 | Score | Team #2 |
|---|---|---|
| SG Cortina
|
4:6, 2:5 | Dukla Jihlava
|
| Brynäs IF
|
2:6, 4:6 | CSKA Moscow
|
Finals
| Team #1 | Score | Team #2 |
|---|---|---|
| CSKA Moscow
|
7:0, 3:3 | Dukla Jihlava
|
