This Professional Final Paper describes the trade policy of the European Union, both within it and with its trade relations with other countries. By removing technical, legal and administrative obstacles, the European Union allows its citizens to trade and operate freely. The trade policy of the European Union enables economic development and prosperity for all entities within the European Union. In this way, the world's third largest market was created with more than 500 million consumers. Through a great deal of trade, the European Union also has a large economic turnover in the world market, whether for export or import of goods and services. The aim of the trade policy of the European Union is to simplify trade and business, which has been achieved through the abolition of customs duties within the European Union. By creating a customs union, the European Union has facilitated trade between Member States, meaning that no customs tariffs apply in internal trade between Member States. With other countries, the European Union does this by concluding trade agreements. Looking at the data on EU exports and imports, we can see that the most important partners are the United States, China, Russia and Switzerland. Turkey and India are the new trading partners with which the economic exchanges are increasing. Adhering to its principles on the free movement of people, goods, services and capital, respect for human rights and by setting high environmental standards for sustainable development in harmony with nature, the trade policy of the European Union sets the standard for trade in the world market.