The development of intra-EU adoption could represent a step forward in the protection of children's rights. Within the EU, there is an agreed position on the need to protect children's rights and the member states nurture the tradition of protecting these rights. An additional reason, which speaks in favor of the thesis about intra-EU adoptions as the most suitable form of international adoptions, is that the adoptee and the adopter in such adoptions share a certain part of the cultural heritage. Despite numerous cultural differences between individual member states, it is undeniable that they share a similar vision of freedom of religion, the importance of education and democratic political processes. In other words, all member states are at a similar level of civilization development. Because of all the above, in the future, intra-EU adoption should be promoted as the most suitable form of international adoption. In this paper are presented two possible ways of creating rules that would contribute to the increase of intra-EU adoption: the way of creating rules through the instrument of soft law and the second way of creating rules through the instrument of enhanced cooperation (hard law).