Osaka Loop Line
A 323 series train on the Osaka Loop Line in September 2017
Native name大阪環状線
OwnerJR West
LocaleOsaka, Japan
TypeHeavy rail
SystemUrban network
Operator(s)JR West
JR Freight
Rolling stock323 series
221 series
223-0 series
223-2500 series
225-5000 series
271 series
281 series
283 series
287 series
289 series
Daily ridership984,395 (FY2015)[1]
OpenedApril 5, 1898 (first section)
April 25, 1961 (entire line)
Line length21.7 km (13.5 mi)
Number of tracks3 (Fukushima — Nishikujo)
2 (other sections)
Track gauge1,067 mm (3 ft 6 in)
Electrification1,500 V DC (overhead line)
Operating speed100 km/h (62 mph)
SignallingAutomatic block signalling
Train protection systemATS-P

The Osaka Loop Line (大阪環状線, Ōsaka kanjō-sen) is a railway loop line in Japan operated by the West Japan Railway Company (JR West). It encircles central Osaka.

Part of a second, outer loop line, the Osaka Higashi Line, from Hanaten to Kyuhoji was opened on March 15, 2008, and the line from Shigino to Shin-Ōsaka opened in March 2019. This entry covers the original central loop line.


The loop line consists of two tracks around the heart of metropolitan Osaka. All train services consist of eight cars, with distinctive orange color with white JR graphics on the front, rear and sides. The train schedule varies, but on average, two trains leave Tennōji Station and Ōsaka Station every five minutes, in opposite directions.


Osaka Loop Line trains
Osaka Loop Line trains
JR Yumesaki Line through trains
Yamatoji Rapid, Regional Rapid
Kansai Airport Rapid,
Kishūji Rapid, Direct Rapid
Kansai Airport
Kansai Airport

On this line, JR West operates several types of trains. The line serves as a link between Ōsaka Station in northern Osaka (actually the Umeda district), and Tennōji in southern central Osaka. Some Limited Express trains linking north and south of the Osaka-Kobe-Kyoto area use the line as a bypass between the Tōkaidō Main Line in the north and the Hanwa Line in the south. Traffic is heavier in the eastern half, Osaka - Kyōbashi - Tennōji, than in the western half via Nishi-Kujō.


The completely loop shaped Osaka Loop Line is unable to use the 'up' and 'down' train direction convention commonly applied in Japanese railways, e.g. trains traveling to Tokyo are usually 'up' trains and vice versa. Instead, the words "outer circle" (or outer loop) (外回り, Soto mawari) and the "inner circle" (内回り, Uchi mawari) are used to refer to the direction. The outer is clockwise, the inner counterclockwise.

If rules, such as the registration of the line at the Ministry of Land, Infrastructure, Transport and Tourism apply,[2] the inner loop is down.


Local trains are operated all day. Some operate over the complete loop, while some serve the eastern half between Osaka and Tennōji via Kyōbashi.

Eight-car EMUs of 323 series are used. 221 series, 223 series and 225 series are used only for morning rush.

Sakurajima Line trains

Trains of the Sakurajima Line (JR Yumesaki Line) are now operated through to the loop line to/from Kyōbashi and Tennoji.

Eight-car 323 series EMUs are used.

Rapids of Kansai Main Line

Through trains to the Kansai Main Line (Yamatoji Line) began operated in 1973. "Yamatoji Rapid" (大和路快速, Yamatoji Kaisoku) and "Regional Rapid" (区間快速, Kukan Kaisoku) trains originate at Tennōji on the loop, passing the loop as "inner" via Osaka, and after stopping at Tennōji after a complete circuit, exit the loop onto the Kansai Main Line and terminate at Kamo, Nara or Ōji. In the loop, Yamatoji Rapids pass some stations while Regional Rapids stop all.

For "Yamatoji Rapid" and "Regional Rapid", usually 8-car and 4+4 car 221 series EMUs are used.

Rapids of Hanwa Line

Trains to the Hanwa Line, "Kansai Airport Rapid" (関空快速, Kankū Kaisoku) for Kansai Airport and Kishūji Rapid (紀州路快速, Kishūji Kaisoku) for Wakayama originate at either Tennoji or Kyobashi, and together with other types of rapid trains, operate on the inner loop via Osaka, pausing at Tennoji and then exiting from the loop. This pattern commenced in 1989, but increased significantly in 1994 on the opening of Kansai Airport.

8-car 223 series and 225 series EMUs in 4+4 formations are used for Kansai Airport and Kishūji rapids. 113 series 4-car units were used for rapids of Shin-Ōsaka - Kii-Tanabe in early morning and late night. They were withdrawn in 2010.

Limited express

Charged Limited Express services such as Haruka for Kansai International Airport, and south bound Kuroshio on the Hanwa Line and Kisei Main Line (Kinokuni Line) heading for the scenic southern Wakayama Prefecture utilize the Osaka Loop Line to bypass the Tōkaidō Main Line and reach the Hanwa Line. On the loop, aside from Tennōji, limited numbers of trains stop only at Nishi-Kujō.

Between the Tōkaidō Main Line and the Osaka Loop Line, trains utilize the "Umeda freight line" which crosses immediately west of Ōsaka Station, not stopping at Osaka because no passenger facilities are installed on the freight line, until it merges the main line at Shin-Ōsaka. This route was introduced in 1989 on the completion of a bypass track from the Hanwa Line to platforms of the Kansai Main Line at Tennōji. Until then no through operations were possible from the Hanwa Line.

281 series and 271 series EMUs are used for Haruka, 283 series EMUs, 287 series EMUs and 289 series EMUs for Kuroshio.

Freight trains

After the abandonment of the Naniwa freight terminal, freight trains on the line operate only between Fukushima and Nishikujō, from the "Umeda Freight Line" to Ajikawaguchi on the Sakurajima Line (JR Yumesaki Line).


Listed counterclockwise: All stations are in the city of Osaka, Osaka Prefecture.

No. Station Distance (km) Transfers Location
↑ Loop line towards Shin-Imamiya
 JR-O01  Tennōji 天王寺 11.0 Kansai Main Line (Yamatoji Line) ( Q20 ), Hanwa Line ( R20 )
Osaka Metro: Midōsuji Line (M23), Tanimachi Line (T27)
Kintetsu: F Minami Osaka Line (F01: Osaka Abenobashi Station)
Hankai Uemachi Line (HN01: Tennoji-ekimae Station)
(Nankai Main Line Tennoji Branch - closed 1993)
 JR-O02  Teradachō 寺田町 12.0  
 JR-O03  Momodani 桃谷 13.2  
 JR-O04  Tsuruhashi 鶴橋 14.0 A Kintetsu Nara Line (A04), D Osaka Line (D04)
Osaka Metro: Sennichimae Line (S19)
 JR-O05  Tamatsukuri 玉造 14.9 Osaka Metro: Nagahori Tsurumi-ryokuchi Line (N19)
 JR-O06  Morinomiya 森ノ宮 15.8 Osaka Metro: Chūō Line (C19), Nagahori Tsurumi-ryokuchi Line (N20) Chūō
 JR-O07  Osakajō-kōen 大阪城公園 16.7   Jōtō
 JR-O08  Kyōbashi 京橋 17.5 Katamachi Line (Gakkentoshi Line)/JR Tōzai Line ( H41 )
Keihan Main Line (KH03)
Osaka Metro: Nagahori Tsurumi-ryokuchi Line (N22)
 JR-O09  Sakuranomiya 桜ノ宮 19.3   Miyakojima
 JR-O10  Temma 天満 20.1 Osaka Metro: Sakaisuji Line (K12: Ōgimachi Station) Kita
 JR-O11  Ōsaka 大阪 0.0 Tōkaidō Main Line ( JR Kyoto Line ( A47 ), JR Kobe Line ( A47 ), JR Takarazuka Line ( G47 )), Osaka Higashi Line ( F01 ), JR Tōzai Line ( H44 :Kitashinchi Station)
Osaka Metro: Tanimachi Line (T20: Higashi-Umeda Station), Yotsubashi Line (Y11: Nishi-Umeda Station), Midōsuji Line (M16: Umeda Station)
Hankyu: Kōbe Line, Kyoto Line, Takarazuka Line (HK-01:Osaka-umeda Station)
Hanshin Main Line (HS 01:Osaka-umeda Station)
 JR-O12  Fukushima 福島 1.0 JR Tōzai Line ( H45 :Shin-Fukushima Station)
Hanshin Main Line (HS 02)
Keihan Nakanoshima Line (KH54:Nakanoshima Station)
 JR-O13  Noda 野田 2.4 Osaka Metro: Sennichimae Line (S12: Tamagawa Station)
 JR-O14  Nishikujō 西九条 3.6 Sakurajima Line (JR Yumesaki Line) ( P14 )
Hanshin Namba Line (HS 45)
 JR-O15  Bentenchō 弁天町 5.2 Osaka Metro: Chūō Line (C13) Minato
 JR-O16  Taishō 大正 7.0 Osaka Metro: Nagahori Tsurumi-ryokuchi Line (N11) Taishō
 JR-O17  Ashiharabashi 芦原橋 8.2 Naniwa
 JR-O18  Imamiya 今宮 8.8 Kansai Main Line (Yamatoji Line)  Q18 
 JR-O19  Shin-Imamiya 新今宮 10.0 Kansai Main Line (Yamatoji Line)  Q19 
Nankai (NK03): Nankai Main Line, Kōya Line
Osaka Metro: Midōsuji Line (M22: Dōbutsuen-mae Station), Sakaisuji Line (K19: Dōbutsuen-mae Station)
Hankai Line (HN52: Minami-Kasumichō Station)
↓ Loop line towards Tennōji

Stopping patterns

Station Local
Regional Rapid
Yamatoji Rapid
Direct Rapid
Kishuji Rapid
Kansai Airport




13, 14



Noda | | | |
Ashiharabashi | | | |
Imamiya | | | |
1, 4

2, 3


3, 4



11, 14




15, 18

15, 18

15, 18
Through to/from  Loop service in Osaka Loop Line JR Yumesaki Line Yamatoji Line Hanwa Line Hanwa Line &
Kansai Airport Line

Rolling stock


The first of a fleet of 21 new 323 series eight-car EMU trains were introduced from 24 December 2016, scheduled to entirely replace the fleet of 23 103 and 201 series trains by 2018.[3] As of December 2021, few of the remaining 103 series (from Nara Line) and 201 series (Osaka Higashi & Yamatoji Line) continue to be used on the Loop Line.

Yamatoji Rapid, Regional Rapid

Kansai Airport Rapid, Kishūji Rapid, Direct Rapid and Local

Limited express


Locomotives seen hauling freight trains include the M250 series, EF65, EF66, EF81, EF210 and DE10.





A special discount rate is applied for travels within the Osaka Loop Line, the Sakurajima Line and the segment between JR Namba Station and Tennōji Station of the Kansai Main Line (collectively called the Osaka Loop Zone (大阪環状線内, Ōsaka Kanjōsen-nai)). The following table is the rate for adult single-ride tickets.[6] (Note: Fractions of one kilometre are rounded up to the nearest full kilometre.)

Kilometre Yen
1 – 3 120
4 – 6 160
7 – 10 170
11 – 15 190
16 – 20 260

For travel between a station within the zone and a station out of the zone or between two stations out of the zone, fares are calculated in accordance with a universal fare table and the discount rate as above is not applicable.

For the calculation of the fare for travel between two stations out of the zone that includes the segment between Ōsaka Station and Tennōji Station of the Osaka Loop Line, where two routes (10.7 km or 6.6 mi route via Temma and 11.0 km or 6.8 mi route via Fukushima) are practical, the shorter route is always used irrespective of the actual travel route.[7][8]


The Osaka Loop Line consists of four segments, namely:

Jōtō Line
Eastern half of present line, Osaka - Tennōji via Kyōbashi
Nishinari Line
The northwestern quarter, Osaka - Nishi-Kujō
Kansai Main Line freight line
Southwestern portion, Tennōji - Sakaigawa Junction
Purpose-built section
The remainder to complete the loop, Nishi-Kujō - Sakaigawa Junction

Jōtō Line

The Osaka to Tennōji via Kyōbashi section (the eastern half of Osaka Loop Line) was opened by the Osaka Railway (大阪鉄道, Osaka Tetsudō) (which also opened the present Minami Osaka Line network) to link it to the Japanese Government Railway (JGR) network in 1895. The line was opened in 2 stages: Tennōji - Tamatsukuri (2 mi. 28 chain, ca. 3.8 km) on 28 May; and Tamatsukuri - Umeda (4 mi. 29 chain, ca. 7.0 km) on 17 October.

Earlier, in 1889, the company opened its main line from Kashiwara - Tennōji - Minatomachi (湊町, present JR Namba) which includes a short section of the Osaka Loop Line, being Tennōji - Imamiya; Imamiya station itself, located between Tennōji and Minatomachi, was opened in 1890.

The Osaka Railway merged with the Kansai Railway (関西鉄道, Kansai Tetsudō, also read as Kansei or Kwansai) in 1900, creating a single entity for the line from Tennōji Station to JGR Ōsaka Station. The Kansai Railway was acquired by the national government in 1907 under the 1906 Railway Nationalization Act. In 1909 the line was named the "Jōtō Line" (城東線, Jōtō sen).

In 1930, distrances were changed to metric, thus the distance changed from 6.6 miles. to 10.7 km. Electrification of the Jōtō Line was commissioned in 1933.

Nishinari Line

The Osaka to Nishi-Kujō section (the northwestern quarter of the line) was built by the Nishinari Railway (西成鉄道, Nishinari Tetsudō) to provide rail access to the Osaka Port. In 1898, the company opened the Osaka - Ajikawaguchi line, which was leased to JGR in 1904. In 1906 the company was nationalized under the act of the same year. In 1909, the line was named the "Nishinari Line" (西成線, Nishinari sen) which included the present-day Sakurajima Line.

The Nishinari Line was electrified in 1941.

Kansai Main Line Freight Line

The Tennōji to Sakaigawa Signal Box (between Taishō and Bentenchō, closed in 2006 when the branch to the port closed) section (south-western portion of the loop) was constructed for freight traffic by the JGR to the port area in 1928, connecting to a freight branch line of the Kansai Main Line, Imamiya - Naniwa (浪速) - Osaka-minato (大阪港, apart from the present Ōsakakō Station on the Osaka Municipal Subway Chūō Line) with a distance of 5.2 mi. (ca. 8.4 km). In 1930 with the change to metric measurement, it became 8.2 km. The former Osaka-Minato and Osaka-Tōkō stations were closed in 1984.

Purpose-built loop line section

To complete the Loop Line, new tracks were constructed between Nishi-Kujō and Sakaigawa Signal Box by the then Japanese National Railways. In 1961, this section opened and the new Osaka Loop Line was named for the entirety of the then Jōtō Line, Osaka - Nishi-Kujō section of the Nishinari Line (the rest, Nishi-Kujō - Sakurajima was named the Sakurajima Line) and the new Nishi-Kujō - Taishō - Tennōji section.

In 1964, operation as a complete Loop Line commenced with the opening of elevated double tracks around Nishi-Kujō. Until then the operation had been undertaken in the shape of a mirrored "6", Sakurajima - Nishi-Kujō - Osaka - Kyōbashi - Tennōji - Nishi-Kujō. The Tennōji - Shin-Imamiya section was quadrupled in 1968, to separate operations from the Kansai Main Line.

See also


This article incorporates material from the corresponding article in the Japanese Wikipedia

  1. ^ 平成27年 大都市交通センサス 近畿圈報告書 (PDF).
  2. ^ Ministry of Land, Infrastructure and Transport (2001) Railway directory: FY Heisei 13th ed. (鉄道要覧平成13年度版, Tetsudō Yōran Heisei 13 nendo-ban), Tokyo: Tetsudō Tosho Kankōkai or Denkisha Kenkyūkai (鉄道図書刊行会 or 電気車研究会) ISBN 4-88548-099-X
  3. ^ Ueshin, Daisuke (25 December 2016). 大阪環状線新型車両323系、日中3編成で活躍 - JRゆめ咲線(桜島線)も初運行 [Three new Osaka Loop Line 323 series trains in service]. Mynavi News (in Japanese). Japan: Mynavi Corporation. Archived from the original on 26 December 2016. Retrieved 26 December 2016.
  4. ^ 大阪環状線の103系が10月3日をもって営業運転を終了 [Osaka Loop Line 103 series to end operations on 3 October]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 5 September 2017. Archived from the original on 5 September 2017. Retrieved 5 September 2017.
  5. ^ 明日6月7日、大阪環状線の201系が営業運転を終了します [On June 7, the Osaka Loop Line 201 series will end the operation]. Tetsudo Channel Online (in Japanese). Japan. 6 June 2019. Archived from the original on 6 June 2019. Retrieved 7 June 2019.
  6. ^ West Japan Railway Company. "きっぷのルール" [Ticket Rules] (in Japanese). Retrieved October 17, 2015.
  7. ^ West Japan Railway Company. きっぷのルール [Rules for tickets] (in Japanese). Archived from the original on 2008-01-24. Retrieved 2008-02-02.
  8. ^ Section 69, West Japan Railway Company Terms and Conditions for Passenger Transport