Servicing the Greater Power for Survival-Relationship between China and Korea On the Occasion of the Yuan and Ming Dynasties

China has a long history relationship with the country on the Korean Peninsula, in which the development of the relations between the Yuan (1271 - 1368) and Ming (1368 - 1644) Dynasties can be said to be more complicated.Because the Korean Peninsula is influenced by the change of China, it is forced to make a choice between the declining Yuan Dynasty and the rising Ming Dynasty, thus causing a lot of diplomatic problems.In addition, from the perspective of diplomatic history, political negotiation, cultural communication and commodity trade are three important elements, and the three are interconnected. The development of Sino Korean relations at the time of the Yuan and the Ming Dynasties shows the mutual influence and importance of the three, which makes the problem of higher research value.