The 1969–70 Algerian Cup was the 8th edition of the Algerian Cup. CR Belcourt were the defending champions, having beaten USM Alger 5–3 in the previous season's final.
Round of 64
Round of 32
Round of 16
Quarter-finals
| 24 May 1970 first leg | ES Guelma | 1 – 4 | CR Belcourt | Stade Ben Abdelmalek, Constantine |
| 31 May 1970 Second leg | CR Belcourt | 3 – 1 | ES Guelma | Stade d'El Anasser, Algiers |
| 24 May 1970 first leg | JS Kabylie | 2 – 2 | USM Alger | Stade Saint Eugéne, Algiers |
| 30 May 1970 Second leg | USM Alger | 3 – 1 | JS Kabylie | Stade d'El Anasser, Algiers |
| 1970 first leg | ES Mostaganem | 2 – 1 | JSM Tiaret | , |
| 1970 Second leg | JSM Tiaret | 0 – 1 | ES Mostaganem | , |
| 1970 first leg | US Santé | 0 – 0 | RC Kouba | , |
| 1970 Second leg | RC Kouba | 1 – 0 | US Santé | , |
Semi-finals
| 7 June 1970 first leg | CR Belcourt | 5 – 2 | RC Kouba | Stade d'El Anasser, Algiers |
| 14 June 1970 Second leg | RC Kouba | 2 – 1 | CR Belcourt | Stade Bologhine, Algiers |
| 7 June 1970 First leg | USM Alger | 1 – 0 | ES Mostaganem | Stade 19 juin 1965, Oran |
Meziani  28' |
| 20 June 1970 Second leg | ES Mostaganem | 0 – 0 | USM Alger | Stade d'El Anasser, Algiers |
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