National final
The Irish National final was held on Sunday 1 March, three weeks later than planned owing to a technicians' strike at the national broadcaster. It was broadcast live from the RTÉ studios in Dublin on RTÉ Television, and hosted by Brendan O'Reilly. Eight songs competed for the honour of representing Ireland at the Eurovision Song Contest 1970 being held in Amsterdam. The winning song was decided by 10 regional juries throughout Ireland.
| Draw | Artist | Song | Points | Place |
| 1 |
Anna McGoldrick |
"Dá Sheolfainn an Domhan" |
n/k |
n/k |
| 2 |
John McNally |
"An Irish Love" |
9 |
3 |
| 3 |
Pat and Jean |
"Cé'n Fáth Ná Graíonn Tú Mé" |
0 |
8 |
| 4 |
We 4 |
"D'Imigh an Ghrian" |
5 |
4 |
| 5 |
Maxi, Dick and Twink |
"Things You Hear About Me" |
14 |
2 |
| 6 |
Dana |
"All Kinds of Everything" |
23 |
1 |
| 7 |
Tony Kenny |
"No Time Like Summertime" |
n/k |
n/k |
| 8 |
Tony O'Leary |
"She Meant Everything" |
n/k |
n/k |
Dana had previously participated in the Irish national final in 1969, and finished in second place. Both Anna McGoldrick and Tony Kenny had sung in the national contest in 1968.
At Eurovision
Voting
Every country had a jury of ten people. Every jury member could give one point to his or her favourite song.
Points awarded to Ireland
| Points awarded to Ireland |
| 10 points |
9 points |
8 points |
7 points |
6 points |
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| 5 points |
4 points |
3 points |
2 points |
1 point |
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Points awarded by Ireland
References
 Ireland in the Eurovision Song Contest |
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Note: Entries scored out are when Ireland did not compete |
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