The right of EU citizens to consular protection in third countries, where their Member State is not represented, is one of the most significant rights attached to the European citizenship. With the existing legal basis laid down in the Treaty on European Union and the Treaty on the Functioning of the European Union, the right to consular protection of EU citizens has all the conceivable chances to be established uniformly by union actions and under the supervision of the European Court of Justice. The aim of the Council Directive (EU) 2015/637 is to lay down the cooperation and coordination measures necessary to further facilitate consular protection to unrepresented citizens of the European Union. Nevertheless the directive does not affect consular relations between Member States and third countries. The present paper focuses on the actions had been taken in this field from the treaty establishing the European Economic Community until the achievements of the Treaty of Lisbon and the aforementioned Council Directive.