From the early days of the People's Republic of China to the end of the 1960s, Sino-Japanese relations were in a state of de facto political blockade, but the two countries actually had extensive exchanges in the economic field. After the normalization of diplomatic relations between China and Japan, China, Japan and the United States actually formed an anti-Soviet strategic iron triangle relationship in the Asia-Pacific region. At that time, Sino-Japanese relations were the best in history. Until 1990, the United States betrayed China, joined forces with other countries to sanction China, and Japan did not follow the crowd to sanction China. Later, after the end of the cold war, a new pattern began to take shape, and Sino-Japanese relations began to be tense, and now they have almost fallen to the bottom. It is worth mentioning that although China gave up Japan's war reparations, it reached an ODA agreement with Japan, and ODA has not stopped until now. So far, Japan has provided China with at least $60 billion in official development assistance. This kind of interest-free loan really played a huge role in the economic development of China in the early days of reform and opening up, and also made the China market in the 1980s almost made in Japan.

With the disintegration of the old pattern and the decline of the old hegemony, the future conflict of Japanese-speaking China in the Asia-Pacific region is probably inevitable, and the struggle and confrontation between the two countries in the next few hundred years are also foreseeable.