Tianjin Metro Line Z4

 

Zhaishang - Beitang

(Identification Color: Light Purple       )
 

Tianjin Metro Line Z4, also branded as the Binhai coastal rapid line, is a north-south route running entirely inside Binhai New Area. Its northern section from Zhaishang to Beitang, stretching 23.7 km (14.75 mi) with 10 stations, opened on January 18, 2026. Trains run every 8 minutes during peak hours and every 10 minutes in other times, with a full trip taking about 27 minutes. A single ride end-to-end costs CNY 3.
 

The line provides convenient access to Han'gu old town, Central Fishing Port, Aircraft Carrier Park, Sino-Singapore Eco-City and Beitang ancient town. It is known as Tianjin's sea-view subway: the Beitang – Eco-City segment runs 3 km (1.9 mi) along the coastline, crosses the Yongding New River estuary, and offers window views of the Rainbow Bridge and the Kiev aircraft carrier. It is also called the city's most cost-effective sea-sightseeing train.
 

Z4 is currently not connected with any other Tianjin metro lines, but operated independently. The mid-section is scheduled to enter commissioning by the end of 2027, and planned to transfer with Lines 9, Z2 and B1.
 

Station	To Zhaishang	To Beitang
Zhaishang	—	06:30–20:53
Hangu Hospital	06:54–21:54	06:31–20:54
Central Fishing Port	06:51–21:51	06:34–20:57
Yushadao	06:46–21:46	06:39–21:02

 

Station	To Zhaishang	To Beitang
Aircraft Carrier Park	06:43–21:43	06:42–21:05
Software Park	06:40–21:40	06:44–21:07
Green Tech Park	06:38–21:38	06:47–21:10
Heshun Road	06:35–21:35	06:50–21:13
Sino-Singapore Eco-City	06:32–21:32	06:53–21:16
Beitang	06:30–21:30	—

  Zhaishang
Surroundings: Dongfeng South Road, Hangu 3rd Kindergarten
Bus Routes: 458

 Hangu Hospital
Surroundings: Hangu Hospital, Tianjin Medical University General Hospital, Hai’an Street
Bus Routes: 403, 404

 Central Fishing Port
Surroundings: Central Fishing Port wharf, Haiyun Road
Bus Routes: 509

 Yushadao
Surroundings: Lanqingxi Park, Central Avenue, Yujia Road
Bus Routes: 939, 972

 Aircraft Carrier Park
Surroundings: Tianjin Aircraft Carrier Theme Park (Kiev carrier)
Bus Routes: 127, 501, 509

 Software Park
Surroundings: Tianjin Software Park, Yujia Road
Bus Routes: 127 Ligao Branch, 127 Yugang Branch

 Green Tech Park
Surroundings: Green-tech Start-up Park, Tianjin Eco-City Nankai Primary School
Bus Routes: 138

 Heshun Road
Surroundings: Eco-City Heshun Road community, Anping Road
Bus Routes: Eco-City Line 4

 Sino-Singapore Eco-City
Surroundings: Sino-Singapore Tianjin Eco-City Park, Zhongjin Avenue
Bus Routes: 128, 972, Eco-City Line 4, Eco-City Line 5

 Beitang
Surroundings: Binhai New Area Traditional Chinese Medicine Hospital Beitang Branch, Yongding New River estuary, Rainbow Bridge view
Bus Routes: 103, 127, 137, 506, 519, 519 Branch, 520, 935 Branch
 According to Binhai rail plan, Z4 is the spine of the eastern coastal corridor, linking Han'gu, Eco-City, Bei Tang, Tianjin Economic-Technological Development Area (TEDA), Yujiapu and the middle new town, with a long-term extension to Dagang. Once the Bei Tang - Bin Hai Railway Station section opens around 2027, Z4 will connect with Lines 9, B1 and Z2, finally becoming part of the Tianjin metro network. The future stations south of Beitang are as follows:

 Science & Technology University
Surroundings: Tianjin University of Science and Technology Binhai campus, Haibin education zone
Bus Routes: 104, 517, 518

 9th Avenue
Surroundings: TEDA 9th Avenue industrial corridor, Tianjin Export Processing Zone
Bus Routes: 505, 511, 515

 5th Avenue
Surroundings: TEDA 5th Avenue, Samsung/Toyota supplier parks, Huanghai Road
Bus Routes: 508, 515, 605

 3rd Avenue
Surroundings: TEDA 3rd Avenue commercial spine, Ruijing residential area, Tianjin ETDZ administrative service center
Bus Routes: 503, 507, 513, 605

 Taida (transfer: Line 9)
Surroundings: Tianjin Economic-Technological Development Area core, Tianjin Forest Park, Taida MSD, Radisson Hotel TEDA
Bus Routes: 503, 507, 513, 605, 936

 Binhai Culture Center
Surroundings: Binhai New Area Cultural Center, Museum of Modern Art, Haihe River south bank
Bus Routes: 101, 108, 121, 130, 617

 Binhai Railway Station / Yujiapu (transfer: B1)
Surroundings: Binhai Railway Station, Yujiapu financial district, COFCO Place, DFC mall
Bus Routes: 101, 108, 121, 124, 136, 139, 516, 529, 833, 834

 Youyidao
Surroundings: Yujiapu Youyidao business block, Consular Road, Rongren Road riverside promenade
Bus Routes: 121, 136, 139, 529

 Jinlindao
Surroundings: Jinlindao logistics and residential plot, Dongyan Road
Bus Routes: 112, 627, 822

 Dagu Shipyard
Surroundings: Former Dagu Dockyard heritage area, Haihe south ship-repair zone, Binhai Shipbuilding Museum
Bus Routes: 112, 627, 822

 Oil New Village
Surroundings: Bohai Oil Shiyou Xincun residential community, CNOOC Tianjin branch
Bus Routes: 111, 627, 822, 936