The beijing-tianjin high-speed railway is a inter-city railway between Beijing and tianjin, is China's "long-term railway network planning" in link bohai sea area is an important part of the inter-city rail transportation network, is China's first high-standard, design speed of 350 km of high-speed railway, is also the first opened in the medium and long-term railway network planning "of inter-city passenger transport system.

The construction of Beijing-Tianjin high-speed railway started on July 4, 2005. It was officially put into operation on August 1, 2008. On September 20, 2015, the extension line project was put into operation.

The Beijing-Tianjin high-speed railway runs from Beijing South Railway Station to Binhai Railway Station via Tianjin Railway Station. It is about 166 km long and has seven stations (one of which has been postponed), with a designed maximum speed of 350 km/h. As of August 2018, the Beijing-Tianjin intercity railway was running at a speed of 350 km/h. As of July 1, 2018, the Beijing-Tianjin intercity railway has carried 250 million passenger trips.

The Beijing-Tianjin intercity railway has narrowed the distance between Beijing and Tianjin, enlarged the space for various production factors and resource allocation, exerted an important impact on the economic and social development of the two cities, profoundly changed the work and life concepts of the people of the two cities, and facilitated the travel of the people. At the same time, as China's first high-speed railway with a design speed of 350 kilometers per hour, the Beijing-Tianjin Intercity Railway has not only cultivated a group of trailblazers and pioneers in the development and construction of China's high-speed railway, but also provided technical accumulation and valuable experience for China's high-speed railway to lead the world. Moreover, the Beijing-Tianjin intercity railway, with its advantages of safe and smooth operation, comfortable and fast ride, energy saving and environmental protection, has promoted a great change in the mode of transportation.