In the recent EU international investment agreement negotiations, EU proposed a great number ofreformations on the international investment regulations. For coping with the future negotiation of China-EU Free Trade Agreement, except for analyzing the EU's international investment regulations, the more crucialis to understand the formation and development tendency of the EU international investment regulations. Theformation of the EU international investment regulations is affected by the Treaty of Lisbon, and the Court ofJustice of the European Union plays a significant role in the development of the EU international investmentregulations. The development of the EU international investment regulations is confronted with the problems ofthe coherence and consistency. Coordinating the investment rules of the intra-EU and harmonizing the subjectsbetween the EU and EU member states in the extra-EU international investment arbitrations are vital for thedevelopment of the EU international investment regulations and for the strategy of China to copy with the tradeand investment negotiations with EU.