Kyushu Railway was founded to lay the lines between Moji Station (present Mojiko Station) and Yatsushiro Station, Misumi Station, Nagasaki Station (Nagasaki Prefecture), the line extended from Kokura Station (Fukuoka Prefecture) to Ikuhashi Station (later Kagoshima Main Line, Misumi Line, Nagasaki Main Line, Sasebo Line, Ohmura Line, Nippo Main Line).
九州鉄道は門司駅（今の門司港駅）から八代駅・三角駅・長崎駅(長崎県)、小倉駅(福岡県)から分かれて行橋駅へ向かう路線の敷設（後の鹿児島本線、三角線、長崎本線、佐世保線、大村線、日豊本線）を目指して建設された。