Even after the line's denomination was changed to "Kyoto Main Line," Tenjinbashi Station was for a long time maintained as the starting station; however, following the completion of the so-called sextuple-track work (quadruple-track work between Umeda Station and Juso Station on the Takarazuka Line), the section between Tenjinbashi Station and Awaji Station became known as the Senriyama Line, and the Kyoto Main Line, incorporating the Juso Line, designated Juso Station as its starting point.
路線名が京都本線に改称されてからも、京都本線の起点は長らく天神橋駅のままであったが、いわゆる三複線（宝塚本線の梅田－十三間複々線化工事）が完成したのを機に、天神橋－淡路間を千里山線に変更するとともに、京都本線は十三支線を編入し十三が起点となった。