This study is intended to research the function and role of a temple as communication space on a trip or sightseeing in the Koryo Dynasty. A temple offered a traveller accommodation and protection, and played as a gateway. It was a place where a tired traveller could take a rest or sleep at night and avoid raindrops or the glaring sun on a journey, with a meal and drinking water served there. Travellers carried personal belongings for their journey, but it was difficult to carry drinking water for a long time. Thus, they needed a well or a place where they could get water. The help offered at a temple was not limited to only travellers; They could feed the cattle or a horse that they used for their transportation at the temple, too; especially, more essential in case of a temple located on the rough road or steep path. That is, the temple located at a main artery of traffic would partly take on the role of a station, where a station was not able to be built. Such convenience and help for travellers served at a temple basically came from the idea of mercy of Buddhism and charity of Confucianism. In the light of social welfare, a temple constructed temple buildings, planted shade trees, built a clinic for all creatures, made a bridge or a boat for traveller convenience, prepared guest rooms for accommodation, digged a well for thirsty travellers and built a public lavatory. Thus, it was believed that whoever would do such charitable acts would be entitled to get an easy passage into Paradise or pure land of Amitabha. People practically established such a temple based on the belief. In the Koryo Dynasty, men of letters and government officials enjoyed tour of Temple Jinkwansa, Seungasa, and Jungheungsa located in the middle of Mt. Samgaksan famous for beautiful scenery. They would enjoy beautiful scenery with music and liquor, be given to speculation, going a quiet walk or hiking and exchange mutual thought and ideas with poetic Buddhist monks, which can be said as "Communication" through various ways. Through such a tour, they practically enjoyed true communication; First, they communicated with themselves by training and practicing their philosophical thought and thinking, second; with acquaintances and friends by reading and studying at a temple, third; with illustrious Buddhist monks and famous Confucians or hermits by having a discussion with them, forth; communicated with Nature in the beautiful scenery. They tried to reach "Happiness of true concentration" through unification of "seeing with eyes" and "seeing reason in mind" about what they experienced. This can be said harmony of "calmness" and "movement" through oneness between external objects and self as well as communication between "mind" and "body". It was to experience the meaning of a Confucian saying, so called, "Those who are intelligent like the sea and those who are wise like mountains". Most tourists at that time had an intention of self-training and thinking as well as sightseeing itself in the beautiful scenery. Mutual understanding or communication was made among literary men, officials, Buddhist monks, famous Confucians and hermits, further more, there was no limit of any ideas among Confucianism, Buddhism, Zen, and Reason. Of course, the communication was practically made with a "tour as a practical action" and "independent space called a temple". As mentioned above, a temple served as communication space that helped travellers' passage and officials' tour as well as religious space. Thus, the study can be concluded that a temple had partly traffic and communication function in various ways as proxy for the government and made up for the government's weak control on the public in the Koryo Dynasty.