| Status: | Operating |
| Stations: | 22 |
| Open: | (Nanning-Baise) December 11, 2015 (Baise-Kunming) December 28, 2016 |
| Linelength: | 709.5180NaN0 |
| Tracks: | 2 |
| Minradius: | 4500 m |
| Maxincline: | (Nanning-Baise) 12‰ (Baise-Kunming) 9‰ |
| Electrification: | 50 Hz, 25,000 V |
| Speed: | 2500NaN0 |
Nanning–Kunming high-speed railway (formerly known as the Yunnan–Guangxi high-speed railway[1]) is a high-speed railway connecting Nanning and Kunming, respectively the capitals of the Guangxi Zhuang Autonomous Region and Yunnan Province. It has a total length of 715.8km (444.8miles) of electrified double-track railway, built to the Grade 1 standard. Positioned as part of China's "long-term railway network plan", to improve the layout and the development of South-Western China with critical infrastructure, it was Yunnan Province's first high-speed transport corridor to the sea. With future Pan-Asian railways to Laos, Thailand and Vietnam planned or under construction, this railway will be seen as a crucial link between the economic powerhouse of the Pearl River Delta Economic Zone and Indochina under the One Belt-One Road initiative.
Construction started on December 27, 2009, with the first phase from Nanning to Baise opening on December 11, 2015. It saw 17 new stations constructed, with three more stations being renovated. Bridges and tunnels account for total length of . Built with a total investment of nearly 90 billion RMB, it was expected that the construction period would have a duration of six years.[6] Total length of the project was 709.518NaN, of which 274.83NaN was in Guangxi Zhuang Autonomous Region, and 432.183NaN within Yunnan Province.
Starting at Nanning's Xixiangtang District the railway travels north-west through Long'an County to Baise's Pingguo County, Tiandong County and Tianyang County before reaching Baise urban Youjiang District itself. After this, the second phase of the route goes westward across Youjiang District into Yunnan Province's Funing County, Guangnan County and Qiubei County in Wenshan. Turning north-west again, the line crosses Mile City in Honghe. Now progressing northwards, the line enters Kunming's Shilin Yi Autonomous County before cutting across Yuxi's Chengjiang County before re-entering Kunming through Yiliang County. Chenggong District and terminating in the Guandu District.
Kunming South, Jingkai, Yangzong, Shilin West, Mile, Xinshao, Hongshiyan, Puzhehei, Zhulin, Guangnan, Bailazhai, Funing, Bo'ai, Yangwei, Baise, Tianyang, Tiandong North, Pingguo, Long'an East, Nanning West and Nanning