The 27.6km 21-station line will link Urumqi Diwopu International Airport to the north of the city with Santunbei in the south.
Construction began in March 2014 and the Yuan 18bn ($US 2.83bn) project is due to be completed in 2019.
URUMQI Urban Rail Group has awarded CRRC Corporation subsidiary Zhuzhou Electric Locomotive a contract to supply 27 six trains for the Chinese city's first metro line.
The 27.6km 21-station line will link Urumqi Diwopu International Airport to the north of the city with Santunbei in the south.
Construction began in March 2014 and the Yuan 18bn ($US 2.83bn) project is due to be completed in 2019.