Toucheng Township (Chinese: 頭城鎮; pinyin: Tóuchéng Zhèn) is an urban township in the northern coast of Taiwan. It is administered as a part of Yilan County of Taiwan Province of the Republic of China. It claims the disputed Diaoyu Islands otherwise known as Senkaku Islands, as well as Guishan Island.
Toucheng was formerly called Thau-ui (Chinese: 頭圍; Pe̍h-ōe-jī: Thâu-uî).
Shicheng, Dali, Guishan, Daxi, Gexing, Gengxin, Waiao, Gangkou, Wuying, Dakeng, Chengtung, Chengbei, Chengxi, Chengnan, Zhuan, Xinjian, Baya, Fucheng, Jinmian, Jinying, Dingpu, Xiapu, Zhonglun and Ercheng Village.
Toucheng is one of the two cable landing points of Taiwan island (the other one is Fangshan). Four submarine communication cables, including APCN, APCN2, RNAL, and SEA-ME-WE 3, connect here.
The township has its fair share of fresh seafood restaurants and also a remarkable black sand beach,a surfer's attraction with a good view of the Turtle Island. (a national reservation, the only active volcano in Taiwan)
Several boat operators offer trips from the Wushish Harbor to Turtle Island and also for whale and dolphin watching.
The Juh-an River Bird sanctuary is another attraction of Toucheng.