A full-fledged road was built on Ulleungdo in 1918, during the Japanese colonial period, and at this time, a road with a width of 1 to 2m and a length of 50km was newly built.
울릉도에 본격적인 도로가 만들어진 것은 일제강점기 때인 1918년이었는데, 이때 1∼2m의 폭에 연장 50여㎞의 도로가 신설되었다.