Kinmen, alternatively known as Quemoy, is a group of islands governed as a county by the Republic of China, off the southeastern coast of main…Kinmen, alternatively known as Quemoy, is a group of islands governed as a county by the Republic of China, off the southeastern coast of mainland China. It lies roughly 10 km east of the city of Xiamen in Fujian, from which it is separated by Xiamen Bay. Kinmen is located 187 km west from the shoreline of the island of Taiwan across the Taiwan Strait.