The China and Japan are East Asian neighbors with interesting and complicated relations. They started interacting with each other dating back to thousands years ago when the Japanese tributor visited the great China dynasties and learned food, costume and languaged from China. However, before the WWII, Japan grow to an strong imperial power and invaded China, which is the fundamental reason of the tension between the two countries until now. Politically, Japan is America’s best friend in East Asia, and the territory dispute in East China Sea always makes the relations between China and Japan cold to each other. Nevertheless, the economic interactions between them are constantly increasing regardless the negative historical memory and the political tension. This website aims to give readers a basic sense of the complicated interactions between these two East Asian neighbors from aspects of history, politics, economics and culture.