China Railway Second Bureau (formerly Southwest Railway Engineering Bureau) was established on June 12, 1950. It is the first railway construction enterprise in New China that was created by the older generation of revolutionaries such as Deng Xiaoping and He Long and awarded the banner of "Pioneering the Road". It is a railway construction enterprise that has established a modern enterprise system and is listed on the stock market. It is also a core member enterprise of China Railway Group, a Fortune 500 company.

Over the past 71 years, the China Railway Second Bureau has always adhered to the concept of "doing a project and building a monument", moving from north to south, moving east to west, starting from the construction of the Chengdu-Chongqing Railway, the first railway in New China, and has participated in Baocheng, Chengkun, Nankun, Beijing-Kowloon, Qinghai-Tibet, Beijing-Guangzhou, Beijing-Tianjin, Beijing-Shanghai, Harbin University, Jingfu, Lanyu, Guiguang, Xicheng, Hanghuang, Chengpu, Chengya, Zhengji, Guinan, Jingtang, Guangzhou More than 300 key railways including Shantou, Changjinghuang, Jinyong, Chengdawan, Yukun, Sichuan-Tibet Railway have been constructed, with a cumulative mileage of more than 16,000 kilometers, making important contributions to China's railway construction. At the same time, it participated in the construction of Jingxin, Shanzhan, Jingxing, Suiyan, Zunyu, Wentai, Xinyi, Xunfeng, Weiwei, Yuchu, Tongxin, Lexi, Xizhao, Jingxiong, Jiwei, Shen There are more than 200 expressways such as the 109 new line of the sea and National Highway, more than 40 water conservancy and hydropower projects such as Hongyanhe, Jiliangbao, Taipingling, Central Yunnan, and Jianghuai, etc. Chengdu Tianfu, Chengdu Shuangliu, Shenyang Taoxian, Haikou Meilan , Xining Caojiabao, Guiyang Longdongbao, Shenzhen Yantian Port, Shenzhen Dachanwan Port and other more than 20 airports and ports, as well as thousands of municipal and most domestic urban rail transit projects.

As the eldest son of the Republic, China Railway Second Bureau actively responded to the call of the party and the state and unswervingly implemented the "going out" strategy. Since the repair of the railway to resist US aggression and aid Korea in 1952, it has successively participated in the Tanzania-Zambia Railway, the South Yemen Aden Ring Road, and the Nepal International Conference Center. , Laos No. 13 Road, Vietnam Rongju Shipyard, Brunei Housing Construction and Venezuelan Railway and other overseas projects, and actively participate in the "Belt and Road" construction, contracted Ethiopian Light Rail, Ethiopian National Railway, Nepal Bari Babe Tunnel Water Diversion Engineering, China-Laos Railway and a number of internationally influential engineering projects, with footprints in more than 50 countries and regions.

After several generations of people in the Second Bureau, the company has grown from a single railway construction powerhouse to a company with nearly 20,000 talents of various types, 26 subsidiaries, total assets of 95 billion yuan, and an annual comprehensive production capacity of more than 100 billion yuan. It has 4 special-grade general contracting qualifications for construction of railways, highways, housing construction, and municipal works. It is a large-scale modern industrial group integrating engineering construction, infrastructure construction management, real estate development, international business, survey and design consulting, warehousing and logistics, and commercial properties. . It has successively won 93 national and provincial scientific and technological progress awards, 414 national and provincial construction methods, and authorized 661 national patents. Won 147 national-level high-quality engineering awards, including 32 Luban awards, 50 national high-quality engineering awards, 23 Zhan Tianyou awards, 14 national municipal gold cup demonstration project awards, 22 China Construction Engineering Decoration Awards, and China Installation Engineering Quality Award 1, 2 China Steel Structure Gold Awards, 3 National Excellent Welding Engineering Awards; won 476 provincial and ministerial-level high-quality engineering awards. Won the titles of "National Earthquake Relief Hero Collective", "National May 1st Labor Award", "National Excellent Construction Enterprise", "China's Engineering Construction Integrity Typical Enterprise", etc., and was rated as one of the 20 "Most Influential Enterprises" in the country by the China Enterprise Confederation one.

The company headquarters is located in Chengdu, Sichuan Province. Office address: No. 10, Majiahuayuan Road, Chengdu, Sichuan, postal code: 610031.