The purpose of the research of her final work is to describe the path of Croatia to the European Union since the end of the Homeland War and the international recognition of the Republic of Croatia until July 1, when she became her full member. The aim of the final paper is to present the reasons, methods and consequences of the accession of the Republic of Croatia to the European Union, and what are the advantages which are the shortcomings of Croatia's accession to the European Union. The fact is that Croatia has come out of the war so that peace and stability are the natural wish of Croatian citizens as well as most current and future citizens of the European Union. Recovering with poor privatization and war-torn economy, prosperity and growth through participation in the EU's internal market, the benefits of the new member states and the Republic of Croatia were expected. After the war, it is necessary to renew both the communal and road infrastructure so that the investments of the European states are expected, the withdrawal of funds from the European funds. Croatia is the last state to enter the European Union. After a lengthy process and difficult negotiations, different and unjustified conditions from the Republic of Slovenia, on July 1, 2013, Croatia became a full member of the European Union. That year will be remembered by the Croatian people as a great success for the Republic of Croatia, especially today five years after the entry, when the positive effects of EU accession are increasingly evident. As a member of the European Union, Croatia has the possibility of equal participation in a single European market, and for the equitable development of Croatian regions, modernization of agriculture, environmental protection, infrastructure development, quality education and other opportunities for improvement and development of the Republic of Croatia at the disposal of European funds.