This paper explains the relation of road system and provincial city in Joseon dynasty. In 1871, Pak jeong yang wrote an account of journey, and the title of this book is Poswaeilgi
. The object of this paper is seven provincial cities that are Jiksan, Roseong, Ryeosan, Eumjuk, Sangju, Chungju, Hwasung in Poswaeilgi
. Using historical document and maps, this paper clarifies the characteristics of the connection of road system and provincial city in Joseon dynasty. Provincial cities in Poswaeilgi
were enclosed to the mountain. Generally, provincial city was linked with high road by the connection road. But, Hwasung was pierced with Highroad. This is an important location characteristic of 18 century's new city Hwasung that was differentiated with other previous city in Joseon dynasty.