在漫长的古代历史上,中日两国虽隔海相望、一衣带水,但政治关系始终若即若离。自汉朝以降,中国皇帝以朝贡和册封为纽带,与周边国家建立起外交关系,逐渐构成了学者所称的“东亚文化圈”。东汉至东晋南朝时期,日本列岛上的地方政权也曾主动请求中原王朝册封,凭借后者的威望完成了列岛的统一,并在与朝鲜诸国的角逐中获取一席之地。但此后,除室町幕府的足利义满将军短暂向明朝称臣外,日本在多数时候都游离于中国的朝贡体 In the long ancient history, China and Japan although separated by the sea, a strip of water, but the political relations have always been ambiguous. Since the Han Dynasty, the Chinese emperor, with tribute and seal as a link, has established diplomatic relations with neighboring countries and gradually formed what scholars called “the East Asian cultural circle.” From the Eastern Han Dynasty to the Eastern Jin and Southern Dynasties, the local regimes in the Japanese archipelago also voluntarily requested the Central Plains dynasties to seal the seal of the Central Plains, by virtue of which the prestige of the latter completed the unification of the islands and won a place in the race with the North Koreans. However, since then, with the exception of Yuri Manchuria of the Muromachi Shogunate, who was briefly honored by the Ming Dynasty, the tributary body Japan freed most of China from