Economic relations between China and ASEAN is one of complex relationships in the Asia-Pacific area. Undergoing tortuous history with many ups and downs, both China and ASEAN have been closer together in the close cooperation for co-development in recent decades. In twenty-first century, China - Asean economic relations has created great progress compared to other international relations in the region and around the )'vorld This relationship, however has still existed difficulties and obstacles required the both sides to remove and resolve that match the potential strengths of each parties. The following article discusses the achievements and challenges of the economic relations between China and ASEAN (2002-2012).