China National Highway 222 (222国道) runs from Harbin to Yichun in Heilongjiang.

It is 363 kilometres in length and runs northwest from Harbin.

China National Highway 112 runs around Beijing Before 2013, Mainland China observed National Highway 228 as Taiwan Ring, composed of several National Expressway (Republic of China) and Taiwan provincial highways, this designation is not recognized by Republic of China (Taiwan).

Another extension plan was announced in 2022, including new small purpose connection highways (601-701).

This People's Republic of China road-related article is a stub.