The Tongliao–Ranghulu railway or Tongrang Railway (simplified Chinese: 通让铁路; traditional Chinese: 通讓鐵路; pinyin: tōngràng tiělù), is a railroad in northeastern China, between Tongliao station in Inner Mongolia and Daqing west station (formerly Ranghulu station) on the Harbin–Manzhouli railway in Heilongjiang Province.
The railway has a total length of 421 km (262 mi) and runs north-south from eastern Inner Mongolia through western Jilin Province to the oil fields of Daqing in western Heilongjiang.
The line was built from 1964 to 1966.
[1] Major cities and towns along route include Tongliao, Da'an, and Daqing.
Electrification of the railway was completed in 2018.