The pure party-list proportional representation was the traditional electoral system of the Italian Republic since its foundation in 1946, so it was naturally adopted to elect the Italian representatives to the European Parliament.

Italian regions were united in 5 constituencies, each electing a group of deputies.

At national level, seats were divided between party lists using the largest remainder method with Hare quota.

All seats gained by each party were automatically distributed to their local open lists and their most voted candidates.

The small Italian Liberal Party had a breath of fresh air from this vote, doubling its percentage compared to seven days before.