The Keihan Main Line (京阪本線, Keihan-honsen) is a railway line in Japan operated by Keihan Electric Railway. The line runs between Sanjō Station in Kyoto and Yodoyabashi Station in Osaka. There are through services to the Keihan Ōtō Line and the Keihan Nakanoshima Line. Trains from Kyoto to Osaka are treated as "down" trains, and from Osaka to Kyoto as "up" trains.