The human rights are the core values in the European Union vEUz. The member states of EU also promote the developments of democracy and human rights. Nowadays, international nations not only care about the countries which have bad human rights records or situations, but also hope to change them, finding out the way to protect peoples' fundamental human rights in those countries, seeking the real peace in the international nations. Hence, the human rights problems in a country are not only domestic issues anymore. The EU uses human rights to be the way of diplomacy, and wants to achieve it's goals; under the structure of the common foreign and security policy, it makes the member states of EU make the common strategies and be consistent in the external affairs. This article would uses the legal source of the human rights diplomacy which the EU base on to be the longitude; the practical circumstances of the human rights diplomacy to be the latitude. Studying and analyzing the EU's human rights diplomatic policy are also the purposes of this article.