Because it was hard to expand off the site, the origination was moved to Amijima Station (currently closed); Osaka Railway, which had railroad between JR Nanba Station and Nara, was merged and the current Kansai Main Line was opened, re-establishing a terminal at Minatomachi.
しかし、敷地の拡張が困難なため網島駅（廃止）に起点を移設、さらにJR難波駅から奈良に路線網を持つ大阪鉄道(初代)を合併し現在の関西本線を全通、湊町にターミナルを再度移転させた。