The Shanghai–Nanjing intercity railway or Huning intercity railway (simplified Chinese: 沪宁城际铁路; traditional Chinese: 滬寧城際鐵路; pinyin: Hù–Níng Chéngjì Tiělù) is a 301-kilometer (187 mi)-long high-speed rail line between Shanghai and Nanjing, the capital of Jiangsu province.

According to the arrangements of related departments, 120 pairs of trains are operating on the line, and the time interval between services is 5 minutes at the shortest.

[5] The railway links major cities in the Yangtze River Delta, including Suzhou, Wuxi, Changzhou, and Zhenjiang, effectively making the southern Jiangsu city-belt operate like a single metropolitan region.

Due to the alignment of the rail line, some stations along it are shared with the conventional Beijing–Shanghai Railway (Shanghai, Suzhou, Zhejiang, Nanjing), while three others are shared with the new Beijing–Shanghai high-speed railway (Shanghai Hongqiao, Kunshan South, Nanjing South).

List of stations: At Shanghai Hongqiao, some trains arriving from Nanjing continue to the Shanghai–Hangzhou High-Speed Railway, providing a one-seat service along the entire Nanjing–Shanghai–Hangzhou line.