Vietnam Railways is linked to China railways according to 2 directions:
* From Lao Cai province to Van Nam province.
* From Lang Son province to Quang Tay province.
When it is more developed, Vietnam railway network is possibly linked to Cambodia, Thailand and Malaysia railways network via which to Singapore and Laos railways.
Vietnam Railways is using 3 kinds of gauge, namely 1000 mm-gauge, 1435 mm-gauge (standard gauge) as well as 1435 mm and 1000 mm-gauge (mixed gauge). The length of Vietnam railway network and gauge are represented in this table: