The Shenhai Expressway starts in Shenyang and passes through Liaoyang, Anshan, Yingkou, Dalian, Yantai, Qingdao, Rizhao, Lianyungang, Yancheng, Nantong, Shanghai, Jiaxing, Ningbo, Taizhou, Wenzhou, Ningde, Fuzhou, Putian, Quanzhou, and Xiamen , Zhangzhou, Chaozhou, Shantou, Jieyang, Shanwei, Huizhou, Shenzhen, Dongguan, Guangzhou, Foshan, Jiangmen, Yangjiang, Maoming, Zhanjiang, ending in Haikou, with a total length of 3710 kilometers.
Shenyang-Haikou Expressway, referred to as Shenhai Expressway, also known as Shenhai Expressway, China National Expressway Network Number: G15. Except for the Bohai Bay Undersea Tunnel and the Qiongzhou Strait Undersea Tunnel, which have not yet started construction, the Shenhai Expressway was fully opened to traffic on December 28, 2010.