The EU Horizontal Policies and their impact on the relations with third countries have been investigated based on the EU-Ukraine Association Agreement. The essence and role of the EU common policies and the place of horizontal policies within their structure are analysed here. Special attention is paid to the EU-Ukraine cooperation in the framework of the Association Agreement and responsibilities of Ukraine in the process of the law approximation and policy implementation followed by analyses of the achievements, challenges, and further perspectives for their bilateral cooperation in the conclusion.