Sinn Féin has proposed extending the right to vote in Presidential elections for Irish citizens living abroad and appointing a minister to represent the diaspora.
The measures are contained in a new policy document, which the party said aims to improve the relationship between the State and Irish citizens living abroad.
Sinn Féin said 70 million people across the world claim to have Irish roots.
It said 400,000 people have left the State in the last five years.
The party also proposes reforms to the Seanad so the diaspora is represented in the upper house and on the Council of State.
It also wants to see the Government establish a taskforce on emigration.