China National Highway 318

National Highway 318
318国道
Route information
Part of AH42
Length5,476 km (3,403 mi)
Major junctions
FromPeople's Square, Shanghai
ToSino-Nepal Friendship Bridge, Zhangmu
NH34 (Araniko Highway)
Location
CountryChina
Highway system
G317 G319

China National Highway 318 (G318) is a trunk road in China that runs east-west from Shanghai in East China to Zhangmu on the China-Nepal border. It is the longest of the China National Highways at 5,476 kilometres (3,403 mi) in length and runs west from Huangpu District, Shanghai towards Zhejiang, Anhui, Hubei, Chongqing, Sichuan, and ends in Tibet Autonomous Region. From Lhasa to Zhangmu it is also called Friendship Highway. From Markam to Zogang it shares the highway with G214. At the Sino-Nepal Friendship Bridge, it connects with the 115 km long Araniko Highway to Kathmandu.

The route is popular with tourists due to the wide variety of biomes, cultural areas, and natural scenery.