Abstract

It had been continued to the diplomatic negotiations between Silla and Japan without interruption in the times of King Haegyong. But it was a still decreasing aspect and alienating relations to a term of comings and goings or frequency. This is in close connection with the situation of Northeast Asia and the domestic situation of Silla. It had been promoted friendly to the diplomatic relation between Balhae and Tang extending from 755 till 763 year. And also, the diplomatic relation between Silla and Balhae had been peaceable. This evince the fact that a traffic route had been built between two countries from the latter half of the 755’s, and an intention of Tang’s envoy going into Silla. Silla’s political situation had been disordered circumstances owing to noblemen’s gaining power or revolt on and after accession to the throne in the times of King Haegyong. In the presence of an unstable royal authority like this, Silla’s government had sent its envoy to Japan taking a Japanese monk to Tang opportunity in the 5st year of King Haegyong. The foundation contains trade with Japan called economic purpose. In some degree this is able to analogize in view of facts as follows. The political situation of Silla from this time had accomplished a political reform in the direction from which the royal authority had reinforced. Also, King Haegyong had spread out the policy of advancing a person to be neglected from the political world during that time. In this course the government of Silla had dispatched an envoy to Japan. But the diplomatic relationships of both countries had failed to be advanced any longer owing to the trouble caused by a matter of ceremony and the death of King Haegyong.