The main purpose of Bologna Declaration which signed by 29 countries in 1999 was to established a competitive and attractive European Higher Education Area (EHEA) in 2010. After 10 years to implement the Bologna Process, the results of EHEA gradually revealed. However, according to the 2009 Stocktaking report by Bologna Follow-up Group (BFUG), EU countries still need to strive for more coherence between their policies, so the Bologna Ministerial Anniversary Conference 2010 asked the BFUG continually to proposed measures to facilitate the proper and full implementation of the agreed Bologna principles and action lines across the EHEA, to ensure Europe will be able to successfully face the challenges of the next decade. This research mainly, by adopting the method of document analysis, attempted to review the related documents of Bologna Ministerial Anniversary Conference 2010, Bucharest Communiqué and Bologna Process 2012 implementation Report. The conclusions of this research as follows: 1. The framework of EHEA has been established, but more details urgently completed by 2020. 2. According to Bologna Process implement report, the best performance of the indicator is “access to the next cycle”, and the worst is “level of international participation in external quality assurance.” 3. How to reduce the gap between high scored and low scored countries in Bologna Process’s indicators would be the major challenge in future.