The current inner-trade volume between China, Japan and South Korea is comparatively low (20%) when comparing with other trade areas such as the European Union (60%) and North America Free Trade Area (40%). The creation of a "China, Japan and South Korea Free Trade Area" will stimulate business growth and certainly increase trades volume, that is potentially beneficial to these three Nations. The current industry infrastructure of each country tends to compete with each other in some areas while other areas will complement each other. It is going to be a tedious negotiation process, a potential "Game Changer" for future industrial development of each Nation. By using the TC and Ckij index model, this paper analyzes these three nations' trade infrastructure for competitive and complementary industries such as agriculture and manufacturing, in the end it raises some strategic choices for China in the "China, Japan and South Korea FTA"negotiation. <<