The Beijing–Baotou railway or Jingbao railway (simplified Chinese: 京包铁路; traditional Chinese: 京包鐵路; pinyin: Jīngbāo Tiělù) is an 833 km (518 mi) railway from Beijing to Baotou, Inner Mongolia, functioning as an important route in North China.

The first section of this railway, the Imperial Peking–Kalgan railway (now the "Jingzhang" railway) was constructed between 1905 and 1909, connecting Beijing with Zhangjiakou (Kalgan). This section was the first railway designed and built by Chinese. The chief engineer is Zhan Tianyou. He overcame the steep gradient near Badaling using a switchback. Due to his achievement in constructing this railway, Zhan (Jeme) is called the father of China's railways.

The railway was extended from Zhangjiakou to Hohhot by 1921 and to Baotou by 1923.

Even with the switchback, the gradient near Qinglongqiao railway station is still at 3.3%. In addition, travelling through the switchback is slow. A bypass route, Fengsha railway, was built in the 1950s between Fengtai and Shacheng along the Yongding river. This route was dropped by Zhan due to high construction cost. Before the 1990s, the Fengsha railway was mainly used to transport cargos, and the original Jingzhang railway was focused on the passenger transportation. Now, most of the trains coming from Baotou have changed to use Fengsha railway instead.

The S2 local trains between Beijing Huangtudian station and Badaling (the station for visiting the Great Wall) continue to use the Jingbao Railway, reversing at Qinglongqiao West station on the western switchback on the journey towards Badaling and at Qinglongqiao main station on the eastern switchback on their way back towards Beijing. The stops at Qinglongqiao are service stops, not advertised passenger stops and the doors remain closed.

Both Jingbao railway and Fengsha railway are double-track railways. The section between Hohhot East and Baotou railway station is quadruple track.

An express train travels the full distance in approximately 14 hours.