In today's modern industrialized and globally connected world, noticable is increasing in pollution, especially of the sea, therefore environmental protection is more necessary today than ever before, and within this the sea stands out as the most important factor due to its importance for the life on Earth. But paradoixically, on the other hand noticable is increasing in pollution of the sea through transport, coastal tourism and various other things. In order to prevent this, the European Union (further: EU) created a detailed agenda about development of the blue economy and there are six indicators of the blue economy by which the development of blue economy can be tracked in all countries that are members of EU. At first glance it can be concluded that in such a way the industry of countries is trying to slow down by banning them from activities related to the sea, but the reality is quite opposite. Primarly goal of this agenda about blue economy is the economic growth and development of the countries that apply it in such a way that is long termed and sustainable which means that it does not harm either people or nature, and in the end everyone gets benefits from it. In this case EU is doing a very good job in terms of the sustainable development of blue economy, and its positive effects will be seen in the foreseeable future.