The line opened between December 1925 and January 1926, electrified at 600 VDC.
Freight services ceased in 1972, and in 1990 the line voltage was increased to 1,500 VDC.
Proposed connecting line
Sechigo station - Construction of a proposed line to Kokawa on the Wakayama Line commenced in the late 1920s but was abandoned due to the economic depression in the 1930s