European Union has developed from just merely economic cooperation into much stronger bond among its Member States to include unified currency and common foreign security principle. Nevertheless the biggest challenge for European Union is its own status in international law, whether it obtains status as an international legal person whilst eventually will enable it to play more influential role in international community such as the formation of international law and the shaping of international relation. This article will observe this issue by brought up the internal debates on European Union status in international law.