is a monorail route of the Osaka Monorail which connects Osaka Airport Station in Toyonaka, Osaka Prefecture, Senri-Chà «à  Station in Suita, Minami-Ibaraki Station in Ibaraki, Dainichi Station in Moriguchi, and Kadoma-shi Station in Kadoma.
The Main Line runs on an elevated line between Osaka International Airport and Kadoma. It opened on 1 June 1990 between and stations. On 30 September 1994 it reached Shibahara-handai-mae Station, on 1 April 1997, , and on 22 August 1997, its current eastern terminal at Kadoma-shi Station. It is long. A single-way trip over the entire Main Line takes about 36 minutes, and costs ÃÂ¥550.
An , five-station extension from Kadoma to Uryudo was originally planned to open in 2029. This extension's completion was pushed back to 2033 due to construction delays caused by weak foundations. The projected total cost of the constructions were also raised by 80% due to rising labor and material costs.
The entire line is in Osaka.