The programme, billed as the EU's largest humanitarian program, provides debit cards to the most disadvantaged families allowing them to buy food and meet other needs.
It was launched last year following an agreement in which the EU pledged 3 billion euros to help Syrian migrants in Turkey in return for Turkish assistance in curbing illegal migration to Europe.
Jane Lewis, head of the EU humanitarian aid office in Turkey, said today that the program aims to assist 1.3 million refugees by the end of the year.