George Vella was nominated by Labour Leader Alfred Sant and this nomination was unanimously approved by the party.
The election for the PES presidency will be held on at 2pm on Saturday during a PES congress. This congress is expected to discuss the European Socialist Manifesto for the European Parliament elections being held on 12 June.
Dr Sant, Labour MP Helena Dalli, MLP International Secretary Joe Mifsud and Dr Vella will represent the MLP at the congress.