The Osaka Metro Sennichimae Line (千日前線, Sennichimae-sen) is an underground rapid transit line in Osaka, Japan. It is one of the lines of Osaka Metro. It links the northwestern district of Fukushima-ku and the southeastern district of Ikuno-ku with the central commercial and entertainment district of Namba. The line is paralleled by the underground Kintetsu Namba Line/Hanshin Namba Line connection line in its central section. Its official name is Rapid Electric Tramway Line No. 5 (高速電気軌道第5号線), while the Osaka Municipal Transportation Bureau refers to it as Osaka City Rapid Railway Line No. 5 (大阪市高速鉄道第5号線), and in MLIT publications, it is written as Line No. 5 (Sennichimae Line) (5号線（千日前線）). Station numbers are indicated by the letter S.
Platform screen doors are located at all of the stations. The first station, Minami-Tatsumi, had them installed on March 14, 2014 and operation started in April. The final station, Nodahanshin, had them installed and operating in December.[2][3] All platforms are long enough for eight-car trains however a part of each platform has been blocked off, since only four-car trains are needed to carry the amount of traffic on the line. In 2013 the line carried on average 181,238 passengers per day.[4]
All stations are in Osaka.
As there is no dedicated rolling stock depot on the Sennichimae Line, trains are transferred to Morinomiya Depot on the Chūō Line via a connecting track at Awaza.
