Waikejiao is a small sand island in the East China Sea east of Dongtai administered as part of Jiangsu Province, China. Macaiheng is close by.

Waikejiao is one of the baseline points of the Chinese territorial sea.^[1]

• Macaiheng
• Sheshandao

• Declaration of the Government of the People's Republic of China on the baselines of the territorial sea(May15th, 1996)
• (in Chinese)中国东海10座领海基点石碑建成
• (in Chinese)中华人民共和国政府关于中华人民共和国领海基线的声明(1996年5月15日)

33°00′54″N 121°38′24″E / 33.01500°N 121.64000°E / 33.01500; 121.64000