宋日两国之间虽然没有建立正式的官方外交关系,但双方的商贸往来和文化交流却从未间断。充当沟通两国的媒介主要是商人和僧侣。宋代诗作中对宋日之间的交流活动多有反映,为记载宋日关系的珍贵史料。 Although the two countries did not establish official official diplomatic relations between the two countries, the business contacts and cultural exchanges between the two countries have never ceased. The media used to communicate the two countries are mainly businessmen and monks. In the Song Dynasty poetry, there were many reactions to the exchange activities between the Song and the Sun. It was a precious historical record of the Song-Japanese relations.