On Art Official Communication between the Northern Song Dynasty and Koryo

The Song Dynasty was the golden age of the development of Song-Korea relationship.The Song-Korea relationship accelerated the enormous development in political,economic and cultural exchange.Art communication played an important role in the Cultural Exchanges between Song Dynasty and Koryo.It carried out mainly by the official tribute trade and the envoys.Both of the northern Song Dynasty and Koryo's calligraphy art had improved through extensive exchanges.